App-templates: LLM auto-selects project template based on user requirement

- Add webapp template (FastAPI + SQLite) with INSTRUCTIONS.md and setup.sh
- select_template() scans templates, asks LLM to match; apply_template() copies to workspace
- ensure_workspace() runs setup.sh if present, otherwise falls back to default venv
- INSTRUCTIONS.md injected into planning and execution prompts
- Fix pre-existing clippy warning in kb.rs (filter_map → map)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Dockerfile

@@ -18,6 +18,7 @@ WORKDIR /app
 COPY target/aarch64-unknown-linux-musl/release/tori .
 COPY --from=frontend /app/web/dist ./web/dist/
 COPY scripts/embed.py ./scripts/
+COPY app-templates/ ./templates/
 COPY config.yaml .
 
 EXPOSE 3000