moteva/progress.md

Progress Log

2026-07-17 Pen Tool and Shape Path Editing

• Loaded repository instructions, go-zero decision rules, frontend design guidance, and the file-based planning workflow.
• Preserved all existing plan history and started Phase 35 for the requested Pen tool and path editing integration.
• No backend contract change has been assumed; discovery will determine whether the existing canvas node schema can persist editable paths.
• Traced the current toolbar, freehand Pen implementation, shape-node JSON model, React SVG previews, and Leafer renderer boundary.
• Installed leafer-x-path-editor@1.1.3; dependency inspection exposed a Leafer 1.1/2.2 peer-version mismatch that must be resolved before UI wiring.
• Kept Leafer at 2.2.2, aligned the plugin runtime dependencies, and added a dedicated interactive path-editor overlay with programmatic enter/exit and Enter-to-delete bridging.
• Added normalized shape-path persistence, SVG pen-path write-back, shape preview/export support, toolbar integration, and focused regression coverage.
• Focused path tests, strict TypeScript compilation, and git diff --check pass.
• Corrected the tool model after user clarification: restored Brush as the original freehand SVG tool and added a separate Pen mode that produces editable normalized path nodes.

Session: 2026-07-15 (CAD Semantics and Crop)

Phase 23

• Loaded the repository workflow plus planning, frontend, and Go implementation guidance.
• Added the CAD semantic-context and non-destructive crop request as new phases without changing unrelated work.
• Fixed the product invariants: preserve the source, create a sibling crop, and keep model semantics out of visible chat copy.
• Completed the end-to-end design across worker metadata, durable node context, hidden Agent Chat content, vector crop UI, sibling placement, and PostgreSQL persistence.
• Added the optional semanticContext node field to the API specification before generated/server implementation.

Phase 24

• Added versioned CAD metadata containing bounded source/format/unit, drawing bounds, layer/block/entity counts, visible text, and crop-intersection entries.
• Persisted compact node semantic context through the API/domain/PostgreSQL/SQLC/canvas snapshot paths.
• Added hidden cad-context Agent Chat contents: model prompt and memory retain them, while optimistic and persisted user copy exclude them.
• Added vector-toolbar crop, transparent WebP output, crop-specific semantic filtering, right-side sibling placement, source preservation, and automatic selection/reference of the new crop.
• Focused Go application/logic/PostgreSQL tests pass; frontend typecheck and all 16 frontend tests pass.
• Repaired legacy GBK CAD labels and locked the behavior with a focused converter regression.
• Re-ran both supplied files: exact DXF semantics complete in 0.37s and exact DWG semantics in 11s, with bounded contexts of 1,050 and 1,912 characters respectively.
• Increased vector crop raster output to a 2048px long edge so small selections from large drawings remain useful to the image model; sibling canvas display stays bounded to 220-640px.

Phase 25

• All 20 frontend tests pass, including CAD conversion, GBK labels, semantic crop filtering, immutable sibling creation, readable crop sizing, hidden model context, WebP submission, and vector recognition.
• go mod tidy, full go test ./..., go build ./..., API validation, locale parsing, frontend production build, and git diff --check pass.
• Browser setup again reported no available backend, so live crop/hover/request inspection could not be repeated; the active Vite preview still responds at http://127.0.0.1:5174.
• Restored the repository's pre-existing frontend/next-env.d.ts development route import after production builds.

Phase 26

• Documented CAD semantic metadata, hidden Agent Chat context, durable node persistence, and non-destructive crop behavior in the root README and API guide.
• Completed final scope review without reverting unrelated worktree changes.
• Started an isolated updated backend on http://127.0.0.1:8889 and the verified production frontend on http://127.0.0.1:5175; the proxied health endpoint returns the updated service successfully.

Session: 2026-07-15 (Vector Reference Follow-up)

Phases 21-22

• Restored the existing CAD work and regression context after session handoff.
• Confirmed the two independent failures: nested-parenthesis directives bypass the capsule parser, and SVG bytes reach a raster-only image-generation API.
• Locked the product boundary: SVG remains the canvas source; only model-bound references become temporary transparent WebP assets.
• Ran the focused frontend suite and reproduced both English and Chinese nested-parenthesis directives as deterministic failures; the raster WebP baseline still passes.
• Fixed nested-parenthesis directive parsing; all English, Chinese, and existing raster capsule parser cases pass.
• Added browser-side SVG detection by name, URL, response MIME, and content sniffing; model-bound SVG references render to a transparent 2048px WebP derivative, upload once, and cache by source URL.
• Wired both Agent Chat and the canvas image-generator composer through the shared submission adapter while retaining original SVG canvas content and display names.
• The 14-test frontend suite, TypeScript build, and diff whitespace checks pass.
• In-app browser initialization succeeded but no browser backend is currently available, so capsule hover and live request inspection remain unavailable in this environment.
• Production Next/Vite builds pass, the exact nested CAD filename regression passes, and the active Vite preview remains available at http://127.0.0.1:5174.
• Restored the pre-existing frontend/next-env.d.ts development route import after Next rewrote it during the production build.

Session: 2026-07-10

Phase 1: Architecture Discovery

• Status: in_progress
• Read repository instructions and the applicable Go, frontend, planning, and browser verification skills.
• Captured the missing backend ownership, project binding, selector, and chat-context requirements.
• Confirmed the existing go-zero API, SQLC/PostgreSQL, memory-store, and code-generation toolchain.
• Located the project domain/repository and established the project object as the server-side Brand Kit context boundary for chat and generation.
• Traced Agent Chat through planning, research, conversation, and asynchronous generation; identified one project-hydration point plus shared prompt builders for complete coverage.
• Added the Home composer Brand Kit picker and empty create action to the implementation scope.
• Mapped the Home composer action row and frontend project hydration paths for brandKitId integration.
• Re-read the active plan after session recovery and confirmed the existing frontend edits are limited to the Brand Kit feature surface.
• Loaded the project go-zero workflow plus the applicable planning, Go, and frontend implementation guidance.
• Completed architecture discovery, including authentication enforcement, SQLC persistence, async job reloads, direct image prompts, and frontend project hydration.
• Chose a versioned JSON document API with server-side schema validation and prompt compilation; project responses expose only brandKitId, never compiled context.
• Added and validated the API-first contract for Brand Kit list/upsert/delete, project binding, optional project-creation selection, and project response hydration.
• Generated go-zero handlers, logic shells, routes, and types through the local mcp-zero stdio server.
• Added SQLC schema and queries for user-owned versioned Brand Kits and optional project bindings, then regenerated SQLC code.
• Implemented memory/PostgreSQL stores, document validation, single-default enforcement, server-side context compilation, project binding cleanup, and API logic.
• Hydrated the active Brand Kit for synchronous chat, asynchronous create/follow-up jobs, conversations, planner memory, creative prompts, and direct/fallback image prompts.
• Added focused ownership/default/binding/context-injection tests.
• Replaced browser-local Brand Kit persistence with authenticated APIs, including a one-time per-user migration.
• Added reusable Brand Kit selectors to the Home composer and canvas title bar; project creation and binding now send only the selected ID.
• Added server-side Brand Kit asset resolution so uploaded logos, covers, and references reach image generation after user references.
• Added Brand Kit API documentation and ownership/default/binding semantics to the server docs.

Test Results

Test	Result	Status
goctl api validate -api img_infinite_canvas.api	api format ok	pass
Targeted Go tests: application, PostgreSQL/memory repositories, logic, service context, error mapping, and prompt agents	all pass	pass
go test ./...	all packages pass	pass
go build ./...	build succeeds	pass
npx tsc -b	typecheck succeeds	pass
npm run build	Next.js and Vite production builds succeed; existing large-chunk warning only	pass

Session: 2026-07-11

Phase 7: Device Management Discovery and Design

• Status: in_progress
• Loaded repository instructions, go-zero workflow rules, frontend design guidance, and the existing planning state.
• Confirmed a clean worktree before starting the device management task.
• Located an existing account-management component and server device list/removal logic for focused inspection.
• Confirmed the current device endpoints are placeholder implementations over stateless user-only tokens; selective revocation is not yet real.
• Completed the session-registry design, including token sid, legacy-token migration, request metadata context, throttled last-seen updates, expiry filtering, and atomic revoke semantics.

Phase 8: Device Management Implementation

• Status: in_progress
• Added the maintained github.com/mileusna/useragent dependency for normalized, display-only device metadata.
• Implemented token sid claims, session context, UA normalization, memory/PostgreSQL session persistence, active-session authentication, last-seen throttling, listing, revoke-others, and logout revocation.
• First targeted test run compiled successfully; the legacy placeholder test failed because removal now correctly requires a current authenticated session context. The test is being upgraded to the production contract.
• Replaced the placeholder test with multi-device lifecycle coverage and added UA parsing, legacy migration, revocation, logout, and middleware metadata/session-context tests.
• Targeted Go tests now pass: go test ./internal/modules/auth ./internal/handler.
• Rebuilt the account device section with explicit async states, semantic rows, normalized metadata, responsive stacking, duplicate-submit protection, optimistic post-removal reconciliation, and aligned Chinese/English copy.
• Frontend TypeScript validation passes: npx tsc -b.
• Added the follow-up requirement for server-configurable desktop/mobile web-session limits; implementation will extend the API response spec before regeneration.
• Updated and validated img_infinite_canvas.api, then regenerated go-zero types with the documented goctl fallback; the device list response now includes limits.desktop and limits.mobile.
• Added Auth.DeviceLimits.Desktop/Mobile defaults to local and deployment config, wired them through the auth service, and replaced hard-coded UI counts with API-driven interpolation.
• Documented the configuration and effective API policy in server/README.md and server/API.md.
• Focused Go tests and frontend TypeScript validation pass after the configurable-limit change.
• Full verification passes: go mod tidy, API validation, go test ./..., go build ./..., and npm run build (only the existing Vite large-chunk warning remains).
• Initial alternate-port preview starts exposed two environment constraints: go-zero requires a config filename extension and Next permits one dev server per repo. Switched to a .yaml stdin symlink for the backend and the production Next server for the second frontend port.
• The isolated preview is live at http://localhost:5174 with the new backend on http://localhost:8889; the frontend page, auth-options proxy, and protected-device 401 boundary respond correctly.
• The in-app browser runtime has no available browser backend in this environment, so authenticated screenshot inspection could not be completed there.
• Race-enabled auth/middleware tests pass, frontend typecheck and diff checks pass, and the preview proxy still enforces a 401 on unauthenticated device access.
• Reproduced the reported limit bug with a deterministic failing service test: two desktop tokens remained valid with Desktop: 1.
• Implemented atomic same-type enforcement in memory and PostgreSQL stores; new logins keep the newest session and revoke oldest overflow sessions.
• Added device-list reconciliation for sessions created before enforcement and verified current-session preservation.
• Changed the device API timestamp contract to RFC3339 UTC and formatted it with the browser's local timezone via Intl.DateTimeFormat.
• Regression tests now pass for configured desktop limit 1, pre-enforcement reconciliation, concurrent PostgreSQL logins, and timezone-neutral API timestamps.

Phase 11: Visual Annotation Discovery and Design

• Status: complete
• Loaded the repository workflow, supplied HTML reference, frontend design guidance, and existing planning state.
• Located the image toolbar/action mode owner, the shared canvas action generation route, and the separate general-purpose Agent Chat annotation feature.
• Established the implementation boundary: image-local geometry plus editable per-mark instructions, submitted through the existing image action flow.
• Chose a clean-source plus annotated-guide submission model so freehand and shape marks are visible to the image model without becoming output pixels.
• Confirmed the panel can reuse the active canvas model, existing asset upload, asynchronous node action, task event, and result replacement paths.

Phase 12: Visual Annotation Implementation

• Status: in_progress
• Started the API-first action contract extension and canvas-native visual annotation component implementation.
• Added and validated the API request field for an uploaded annotation guide, then regenerated go-zero types through the local mcp-zero stdio server.
• Added the toolbar entry, drawing overlay, four visual tools, numbered mark list, editable instructions, undo/delete, shared model picker, responsive panel placement, and guide rasterization.
• Added backend validation, prompt constraints, clean-source plus guide-image inputs, action lifecycle copy, generator metadata, and focused action coverage.
• Targeted Go tests, locale JSON parsing, and frontend TypeScript validation pass.
• Updated the action contract so visual annotation preserves the original and generates into a sibling copy placed to its right.

Session: 2026-07-15

• Started Phase 27 after reproducing the warning directly from the source stack: .canvas-stage uses React onWheel, and its handler calls preventDefault() at the reported line under a passive delegated listener.
• Added the listener-registration regression first; its red run fails because the non-passive canvas wheel adapter does not yet exist.
• Added the element-level wheel adapter, switched the canvas to the latest viewport ref, removed React onWheel, and preserved the existing interactive-surface bypass behavior.
• The focused non-passive registration/cleanup test, TypeScript build, and diff check now pass.
• Added Phase 28 after confirming Crop existed only in the selected-image/vector floating toolbar, not in workspace-toolbar as requested.
• Browser instrumentation found that the first native-listener effect ran before the project canvas mounted. Bound the effect to project.id so the non-passive listener attaches when .canvas-stage appears.
• Added the Crop icon immediately after Text, with a visible disabled state, active crop state, and selection-tool handoff before opening the existing overlay.
• Full frontend verification passes with 21 tests and both Next/Vite production builds. The supplied DWG still converts in about 10.5 seconds to a 9.06 MB semantic SVG with 748 reusable block instances.
• Browser verification confirms Text -> Crop -> Image ordering, disabled/enabled Crop states, active state, one mounted crop overlay, functional 100% -> 91% wheel zoom, and no passive-listener warnings.
• Restarted the verified frontend preview on http://127.0.0.1:5175 against the existing updated backend on port 8889.
• Started Phase 29 from the enlarged single-image screenshot: the workspace Crop target currently resolves only from selectedImageNode, so the button remains disabled even though there is one obvious image target.
• Added visible-stage crop geometry regressions first; the red run failed on the intentionally missing viewport geometry exports.
• Added shared crop viewport geometry, single-visible-image target resolution, deferred auto-selection crop entry, and selection-anchored crop controls.
• All 23 frontend tests and the Next/Vite production build pass.
• Browser verification confirms the exact enlarged-single-image case and the multi-image ambiguity guard; the updated preview is running at http://127.0.0.1:5175.
• Confirmed the final compatibility boundary: old project CAD nodes will not be migrated or heuristically enriched; the user will re-upload source DWG/DXF files so every retained CAD node uses the current semantic conversion contract.
• Re-ran the final verification after removing legacy recovery scope: all 20 frontend tests, full Go tests, API validation, locale parsing, Go build, Next build, Vite build, and diff checks pass.
• Restored Next's development route type import after production build and restarted the updated preview at http://127.0.0.1:5175; its backend proxy to http://127.0.0.1:8889 returns HTTP 200.

Session: 2026-07-16

Phase 31: Canvas Performance and LeaferJS Evaluation

• Status: complete
• Started a diagnosis-only performance pass after the user reported canvas lag and pointed to leaferjs/leafer-ui as the reference engine.
• The evaluation will establish browser frame-time and long-task baselines before deciding whether LeaferJS should replace the full renderer or only the high-cost visual layer.
• Mapped the current renderer as React/DOM with viewport state updates and full-array node updates on high-frequency interaction.
• Reviewed LeaferJS's retained scene tree, Canvas renderer, hit testing, interaction, and editor capabilities; vendor benchmark claims remain unverified for the application's CAD/image workload.
• Identified viewport-dependent props and fresh per-node callbacks/objects that defeat a simple memoization fix, plus full-document alignment and node-array work on each drag event.
• Confirmed the current LeaferJS package baseline (2.2.2, MIT) and kept dependency installation out of the diagnosis phase.
• Found per-update persistence effect/timer churn and prepared a node-count-scaled Playwright baseline for zoom and drag interactions.
• Reproduced near-linear interaction degradation from 100 to 500 to 1000 nodes, reaching roughly 83ms p95 frame intervals at 1000 nodes.
• Ran the differential control on the same 1000-node DOM: direct world and node transforms held about 9.2ms p95, confirming React-path overhead as the primary bottleneck.
• The initial exact-DWG paint fixture used the raw worker intermediate and correctly failed SVG decoding; switched the probe to capture the normalized asset from the real browser upload path.
• Captured the final 8.87 MB SVG from the real UI upload and measured a single CAD node at 158-192ms p95 during zoom.
• Proved the cached-texture control: a one-time 1200 x 839 transparent WebP display preview reduced the same interaction to 9.2ms p95 while leaving the source contract separable.
• Confirmed that both the general retained renderer and complex-vector texture caching are required; neither optimization alone covers the reported workload.
• Mapped LeaferJS App ground/tree/sky layers, imperative zoomLayer, image caching, and editor events onto the existing canvas domain and React overlay responsibilities.
• Benchmarked LeaferJS itself rather than relying on vendor claims: 1000 rectangles held 9.2ms p95, compared with about 83ms in the current React path.
• Demonstrated that raw complex SVG remains slow in Leafer (275.4ms p95), while an application-owned transparent WebP texture restores 9.1ms p95.
• Completed the evaluation with an incremental renderer-adapter and vector texture-LOD recommendation; no production dependency or renderer code was changed during diagnosis.

Phase 32: Leafer Renderer and Vector Texture Cache

• Status: in_progress
• Started the production implementation after user approval, using the existing CanvasNode[] and SVG/CAD semantic contracts as the source of truth.
• Chosen boundary: persist a separate render-preview URL, render supported visual nodes through LeaferJS, and keep React UI/overlays plus source-based crop/export/model behavior.
• Traced the explicit canvas-node field through the API/domain/PostgreSQL/snapshot layers and the paired source/preview upload changes needed for atomic vector imports.
• Resumed Phase 32 with a clean two-file partial diff: the API spec and generated Go type already expose optional renderContent; persistence, preview generation, and renderer work remain outstanding.
• Completed renderContent plumbing through the frontend domain/snapshot normalizer, Go domain/API mappers, PostgreSQL schema/queries/repository, SQLC generation, mapper regression coverage, and API documentation.
• Added one-time transparent WebP generation for imported SVG/CAD sources, paired source/texture uploads with partial-upload cleanup, optimistic local texture display, and preview-preference helpers for the canvas and thumbnail surfaces.
• Installed leafer-ui@2.2.2 and added a retained Leafer renderer for successful image nodes and manual frames. Vector nodes enter Leafer only when their transparent WebP texture is present; React remains the hit-target, selection, toolbar, crop, and text-edit overlay.
• Moved wheel zoom, canvas pan, and ordinary node drag frames onto imperative Leafer/DOM transforms. React viewport/node state now commits after interaction settles or ends, and drag alignment guides render imperatively.
• Focused/full verification passes after the renderer migration: 29 frontend tests, strict TypeScript compilation, and the complete Go test suite.

Phase 33: Workspace Crop Drag Selection

• Status: complete
• Implemented the clarified two-stage workspace Crop tool: activation now enters a crosshair preselection state instead of immediately opening a full crop selection.
• A click selects the connected color-bounded area under the pointer from the displayed raster/WebP texture; the selection can never exceed the currently visible part of the image.
• Holding the left button and dragging draws a live rule-of-thirds selection, clamps it to the visible target bounds, and opens the existing crop editor on release.
• The existing source-preserving CAD/SVG crop, crop-specific semantic context, raster replacement behavior, presets, resizing, and confirm/cancel flow remain unchanged.
• Added synthetic color-boundary and visible-range drag regressions. All 35 frontend tests, strict TypeScript compilation, git diff --check, and the Next/Vite production build pass.
• Benchmarked the maximum fully connected 640 x 480 color analysis at about 22ms and confirmed the updated single preview server responds at http://127.0.0.1:5175.
• The configured in-app browser backend remained unavailable, so final interactive visual inspection is left to the running local preview; source-level interaction coverage and HTTP verification pass.

Phase 34: Reference-Anchored Generation Placement

• Status: complete
• Started tracing ordered image capsules through prompt serialization, agent submission, streamed project updates, and generated-node reconciliation.
• Confirmed the capsule retains its canvas node ID before submission, while the current generation update path has no reference anchor for result placement.
• Added ordered canvas-reference resolution and a hidden per-turn anchor directive; the visible optimistic Agent message still contains only the user's original capsules and prompt.
• Positioned generation placeholders plus final incremental/non-incremental outputs to the right of the last canvas-backed capsule, with multiple outputs ordered horizontally and no-match behavior unchanged.
• Added frontend and Go regressions for last-capsule selection, URL fallback, unmatched external capsules, directive parsing, immutable anchors, multi-output ordering, and default placement.
• Verification passes: 36 frontend tests, strict TypeScript compilation, Next/Vite production builds, go mod tidy, full Go tests, Go build, focused final regressions, and git diff --check.
• Restarted the updated preview at http://127.0.0.1:5175 with the rebuilt backend on http://127.0.0.1:8889; frontend, backend auth options, and the frontend API proxy all return HTTP 200.

Phase 30: Native-Resolution Vector Crop Fidelity

• Status: in_progress
• Reproduced the user-visible symptom from the supplied comparison: the cropped transparent WebP has substantially thicker CAD strokes and degraded text/detail than the source SVG.
• Ranked the likely causes: low-resolution SVG rasterization followed by pixel upscaling, incorrect viewBox mapping, display-size mismatch, then WebP compression.
• Started a focused regression loop around SVG viewBox cropping and final-resolution rendering while preserving the existing raster crop path.
• Added the red regression for normalized crop mapping against a non-zero SVG viewBox, then implemented the mapping and final-size source preparation.
• Moved the browser SVG rewrite into the exported createCroppedSvgRasterSource production seam; CanvasWorkspace now draws the rewritten crop once at its final output dimensions while raster images retain the existing source-rectangle crop.
• Chromium verification measured a representative non-scaling CAD stroke at 82px through the old low-resolution upscale and 4px through the new native crop, unchanged after transparent WebP encoding.
• Reconfirmed that crop-specific CAD context travels with the sibling reference as hidden cad-context and remains available to the image-generation backend.
• Full verification passes: 24 frontend tests, pnpm exec tsc -b, go test ./..., go build ./..., Next/Vite production builds, and git diff --check.
• Restored Next's development route type import after the production build and restarted the updated preview at http://127.0.0.1:5175; the page and backend proxy return HTTP 200 with no browser console errors.

Phase 15: CAD Import Discovery and Design

• Status: in_progress
• Loaded the repository go-zero instructions plus the applicable Go, frontend, and file-planning skills.
• Preserved the pre-existing frontend/next-env.d.ts change and added the DWG/DXF request as a new plan phase.
• Completed the required workflow/skill reads and confirmed the frontend/backend toolchains and API-first constraint.
• Located the canvas upload/drop surfaces, generic asset upload API, existing SVG render/export support, and canvas node model.
• Traced the exact optimistic upload/save flow and confirmed converted CAD can reuse image-node rendering without changing persistence schemas.
• Confirmed no local CAD converter binary is available and began evaluating a browser-capable dependency that genuinely handles both DXF and DWG.
• Found an MIT-licensed client-side DWG-to-DXF WASM option and isolated the canvas-only import points that need extension.
• Compared candidate packages and selected @node-projects/acad-ts for a single browser-side DWG/DXF-to-SVG pipeline, pending package-level verification.
• Downloaded the exact package tarball for API/runtime inspection without changing repository dependencies yet.
• First package source inspection raced extraction in a parallel tool call; no repository files were affected, and inspection will continue from the actual extracted path.
• Verified the extracted package layout and confirmed the required reader/writer exports are browser-neutral.
• Inspected reader and SVG writer internals; scheduled a runtime fixture because the packaged XML closing logic appears incomplete.
• Ran a real DXF line/circle fixture: parsing succeeds, while raw SVG is invalid exactly as suspected. Conversion will include explicit normalization and validation around the third-party writer.
• Completed CAD import discovery and selected a worker-based, frontend-only conversion design with no REST contract changes.
• The first dependency install was blocked by parent-workspace discovery (workspace:*); no implementation files were changed by the failed command.
• Installed @node-projects/acad-ts@2.3.0 with the repository's pnpm toolchain; package manifest and lockfile are now updated.
• Added the worker converter, SVG repair/sanitization, CAD-aware picker/drop flow, localized statuses, toolbar semantics, and README documentation. Initial typecheck found one third-party collection API mismatch.
• Corrected the collection API mismatch; pnpm exec tsc -b, locale JSON parsing, and git diff --check now pass.
• pnpm build passes for Next and Vite; Vite produced an isolated CAD worker chunk. Began real-browser verification against the already-running local stack.
• Confirmed backend 8888 is this project but frontend 5173 is unrelated; will launch this frontend on 5174 and use upstream CAD fixtures for DXF/DWG tests.
• Found a Next/Turbopack worker packaging defect before runtime release; the fix is to use Next's supported webpack mode for dev/build while keeping the existing isolated worker architecture.
• Updated Next dev/build scripts to webpack mode and reran pnpm build successfully; both Next and Vite now produce executable isolated worker chunks.
• Authenticated in a real browser, created a blank project, confirmed the CAD-aware toolbar control, and triggered a real AC1015 DXF import. Added a visible error toast because conversion failures were otherwise hidden in the canvas state.
• Reproduced the user-visible failure with an upstream DXF fixture and captured the exact cause: the third-party parser returned no model-space entities. Converter dependency/path replacement is now required.
• Received and identified the user's actual failing DXF as R11/R12 AC1009; switched verification to that exact file and stopped two stalled directory-list commands without touching the file.
• Reproduced the exact failure in Node and reduced it to a minimal R12 DXF: SvgXmlWriter crashes when POINT/TEXT fill colors use inherited ByLayer index 256.
• Extracted the worker's conversion core, resolved non-renderable inherited CAD colors before serialization, and added a Node regression test covering R12 point/text entities.
• Imported the exact 915,957-byte user file through the Vite production worker, confirmed upload/save success, visually checked the rendered paper patterns, and confirmed reload persistence with no browser console errors.
• Reproduced a Next-production-only zero-bounds result caused by class-name mangling in the CAD library's metadata lookup; restored exported constructor names inside the worker and added the mangled-name case to the regression test.
• Verified the regular minified Next production build with both the exact R12 DXF and a real DWG fixture; both upload and render successfully without globally disabling minification.

Phase 18: General CAD Compatibility Follow-up

• Status: in_progress
• Reproduced the second user-provided DWG conversion outside the UI: parsing succeeds, but recursive block expansion produces a roughly 50 MB SVG and reaches the browser timeout boundary.
• Profiled model-space entity contributions and isolated repeated INSERT serialization as the dominant time and output-size cost.
• Confirmed the third-party insert path also ignores rotation and scale, making reusable block references a correctness fix as well as a performance fix.
• Located the existing compact vector toolbar and confirmed SVG export already downloads the original SVG source.
• Reduced the second DWG conversion from roughly 44 seconds/50 MB to about 9.6 seconds/8.5 MB by emitting 196 reachable block definitions once and 748 transformed references.
• Imported the optimized DWG in the browser and reproduced the remaining tiny-content framing problem; traced the false extents to a source entity explicitly marked invisible.
• Excluded invisible, off-layer, and frozen-layer entities from output and bounds. Reimport now produces a correctly framed 1200 x 839 vector node instead of 4074 x 1005 with large blank extents.
• Confirmed uploaded SVG/CAD nodes show only the compact 矢量 toolbar and download action; corrected the source-SVG filename so downloads do not gain a duplicate .svg suffix.
• Added focused regression coverage for inherited R12 colors, reusable repeated inserts, full insert transforms, MINSERT arrays, cyclic blocks, invisible extents, and SVG vector-node detection; all seven tests pass.
• Rechecked the exact R12 DXF after the assembler change: conversion completes in about 0.3 seconds and emits a 2.14 MB reusable SVG.
• Rechecked /Users/liangxu/Desktop/花语江南6-204方案.dwg: conversion completes in about 10 seconds, emits an 8.49 MB SVG instead of roughly 50 MB, and frames the visible drawing at a 1.43:1 aspect ratio.
• Browser import, nonblank rendering, compact vector toolbar, source SVG download, save, and reload persistence all pass at http://127.0.0.1:5174.
• Final pnpm test, TypeScript validation, pnpm build, and git diff --check pass; the build retains only the repository's existing Vite large-chunk warning.

Session: 2026-07-17

Phase 35: Pen/Brush correction

• Status: complete
• Resumed from the existing Leafer path-editor implementation after the user clarified that Pen must be added after Shape without replacing Brush.
• Locked the correction boundary: path is the new editable Pen, pen remains the existing continuous Brush, and only marked Pen SVGs plus Shape nodes are vertex-editable.
• Confirmed the toolbar and shortcuts are already separate; isolated the remaining regression to pen-node creation and editable-node detection.
• The focused red test reproduced the boundary bug: marked/unmarked SVG fixtures disagreed with the current Shape-backed Pen contract, and unmarked Brush SVGs were still returned by editablePathForNode.
• Removed legacy Brush SVGs from the vertex-editing contract; the focused regression now passes while the new Pen remains a Shape-backed editable path.
• Verification so far: strict TypeScript passes, all 43 frontend tests pass, git diff --check passes, and the resolved Leafer dependency tree remains entirely on 2.2.2.
• First production-build attempt stopped because another next build process owns the repository build lock; no files were reverted or lock files removed.
• User clarified that the Pen itself must be the Path Editor, not merely Brush sampling persisted as a Shape. Added a new regression expectation for immediate editor entry and Pen-tool editing of existing Shapes.
• First editor-entry patch matched the background handler's duplicate Path branch; TypeScript failed on undefined node, so the fix is being moved to the node handler and the source regression is narrowed to that scope.
• Corrected editor-entry wiring now passes focused tests and TypeScript; the complete 43-test suite and Next/Vite production build also pass.
• Started the updated Vite preview at http://127.0.0.1:5179; browser verification is restoring the existing mocked project flow on that fresh origin.
• Browser interaction now confirms the new Pen opens leafer-x-path-editor immediately after drawing, while Brush retains its prior continuous stroke behavior and remains selected after commit.
• Existing-Shape editing under active Pen did not yet open in the browser despite a confirmed Shape hit; tracing the node pointer handler's earlier branches before finalizing.
• Rebased the remaining fix mentally onto the concurrently added anchor-based Pen implementation; no user changes will be reverted. The needed integration is now pathPen commit/click -> CanvasPathEditor.
• Added regression expectations for explicit Pen completion opening Path Editor, active-Pen Shape clicks entering Path Editor only when no Pen draft is open, and tool switching committing without forcing editor entry.
• The first anchor-Pen node patch hit the duplicate background branch; the scoped regression and TypeScript failed as intended before browser verification.
• Focused Path Editor and anchor-Pen tests now pass (11/11) with strict TypeScript; browser will reload fully to replace the invalidated hot module.
• Clean-browser verification passes for both Path Editor handoffs: active-Pen Shape click and completed new Pen path. Captured output/playwright/path-editor-pen-final.png.
• Rechecked Brush after the clean anchor-Pen reload: continuous freehand behavior remains intact, no editor opens, and Brush stays active.
• Final verification passes on the merged anchor-Pen implementation: 48 frontend tests, strict TypeScript, git diff --check, exact Leafer 2.2.2 dependency resolution, Next production build, and Vite production build.
• Reran the full frontend production build after the lock cleared; Next and Vite both pass, with only the existing large-chunk warning.
• Confirmed both local previews still respond with HTTP 200 at http://127.0.0.1:5175 and http://127.0.0.1:5177.