Document forum feature across site

- Add prominent forum CTA to community page
- Add Get Help section to getting-started docs
- Add forum link to footer Resources section
- Update CLAUDE.md with web UI and forum architecture

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

CLAUDE.md

@@ -78,3 +78,39 @@ providers:
 ```
 
 The `mock` provider is built-in for testing without API calls.
+
+## Web UI & Registry
+
+SmartTools includes a web interface and tool registry:
+
+### Web Modules (`src/smarttools/web/`)
+
+- **app.py**: Flask app factory, registers blueprints
+- **routes.py**: Main web routes (docs, tutorials, tools, etc.)
+- **forum/**: Community forum blueprint
+  - **models.py**: Forum database schema (categories, topics, replies)
+  - **routes.py**: Forum routes (/forum, /forum/c/<slug>, /forum/t/<id>)
+- **filters.py**: Jinja2 filters (timeago, markdown, etc.)
+- **docs_content.py**: Documentation and tutorial content
+
+### Registry Modules (`src/smarttools/registry/`)
+
+- **app.py**: Registry API (tool publishing, search, downloads)
+- **db.py**: SQLite schema and queries
+
+### Key URLs
+
+- `/forum` - Community forum
+- `/docs` - Documentation
+- `/tutorials` - Tutorial guides
+- `/tools` - Tool registry browser
+
+### Running the Web UI
+
+```bash
+# Development
+python -m smarttools.web.app
+
+# Production (example)
+SMARTTOOLS_REGISTRY_DB=/path/to/db PORT=5050 python -m smarttools.web.app
+```