Refactor brand service and related components

- Removed ListQuestionVersions method and associated types from BrandService and Queries.
- Updated PromptRuleGenerationService to change task naming and handling.
- Enhanced ScheduleTaskService to support filtering by created date range and keyword.
- Introduced InstantTaskService for managing instant tasks with appropriate filtering and response structures.
- Added InstantTaskHandler for handling API requests related to instant tasks.
- Created InstantTaskTab component for the admin web interface to display and manage instant tasks.
- Updated database migrations to rename source types for articles and generation tasks.
- Adjusted models and repository queries to reflect the removal of question version handling.

server/internal/tenant/repository/queries/brand.sql

@@ -85,13 +85,6 @@ WHERE id = sqlc.arg(id) AND brand_id = sqlc.arg(brand_id) AND tenant_id = sqlc.a
 UPDATE brand_questions SET deleted_at = NOW(), updated_at = NOW()
 WHERE brand_id = sqlc.arg(brand_id) AND tenant_id = sqlc.arg(tenant_id) AND deleted_at IS NULL;
 
--- name: ListQuestionVersions :many
-SELECT v.id, v.question_id, v.question_text, v.question_hash, v.version_no, v.is_active, v.created_at
-FROM brand_question_versions v
-JOIN brand_questions q ON q.id = v.question_id
-WHERE q.brand_id = sqlc.arg(brand_id) AND q.tenant_id = sqlc.arg(tenant_id)
-ORDER BY v.created_at DESC;
-
 -- name: ListCompetitors :many
 SELECT id, tenant_id, brand_id, name, website, description, product_lines_json, created_at, updated_at
 FROM competitors