docs: add release notes for v1.3.0

releases/memory/v1.3.0.md

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+# Release v1.3.0 (2026-02-11)
+
+## Summary
+
+Introduced article generation with pricelist categories, added local configuration storage, and expanded sync/export capabilities. Simplified article generator compression and loosened project update constraints.
+
+## Changes
+
+### Main Features: Articles + Pricelist Categories
+
+- **Article generation pipeline**
+  - New generator and tests under `internal/article/`
+  - Category support with test coverage
+- **Pricelist category integration**
+  - Handler and repository updates
+  - Sync backfill test for category propagation
+
+### Local Configuration Storage
+
+- **Local DB support**
+  - New localdb models, converters, snapshots, and migrations
+  - Local configuration service for cached configurations
+
+### Export & UI
+
+- **Export handler updates** for article data output
+- **Configs and index templates** adjusted for new article-related fields
+
+### Behavior Changes
+
+- **Cross-user project updates allowed**
+  - Removed restriction in project service
+- **Article compression refinement**
+  - Generator logic simplified to reduce complexity
+
+## Breaking Changes
+
+None identified. Existing APIs remain intact.
+
+## Files Modified
+
+1. `internal/article/*` - Article generator + categories + tests
+2. `internal/localdb/*` - Local DB models, migrations, snapshots
+3. `internal/handlers/export.go` - Export updates
+4. `internal/handlers/pricelist.go` - Category handling
+5. `internal/services/sync/service.go` - Category backfill logic
+6. `web/templates/configs.html` - Article field updates
+7. `web/templates/index.html` - Article field updates
+
+**Stats:** 33 files changed, 2059 insertions(+), 329 deletions(-)
+
+## Commits
+
+- `5edffe8` - Add article generation and pricelist categories
+- `e355903` - Allow cross-user project updates
+- `e58fd35` - Refine article compression and simplify generator
+
+## Testing Checklist
+
+- [ ] Tests not run (not requested)
+
+## Migration Notes
+
+- New migrations:
+  - `022_add_article_to_configurations.sql`
+  - `023_add_server_model_to_configurations.sql`
+  - `024_add_support_code_to_configurations.sql`
+  - Ensure migrations are applied before running v1.3.0