v0.3.0: Publication-ready release with blog site, paper update, and polish

Release prep:
- Version bump to 0.3.0 (pyproject.toml, cli.py)
- Rewrite README.md with current stats (475 drafts, 713 authors, 501 ideas)
- Add CONTRIBUTING.md with dev setup and code conventions

Blog site:
- Add scripts/build-site.py (markdown → HTML with clean CSS, dark mode, nav)
- Generate static site in docs/blog/ (10 pages)
- Ready for GitHub Pages deployment

Academic paper (paper/main.tex):
- Update all counts: 474→475 drafts, 557→710 authors, 1907→462 ideas, 11→12 gaps
- Add false-positive filtering methodology (113 excluded, 361 relevant)
- Add cross-org convergence analysis (132 ideas, 33% rate)
- Add GDPR compliance gap to gap table
- Add LLM-as-judge caveats to rating methodology and limitations
- Add FIPA, IEEE P3394, W3C WoT to related work with bibliography entries
- Fix safety ratio to show monthly variation (1.5:1 to 21:1)

Pipeline:
- Fetch 1 new draft (475 total), 3 new authors (713 total)
- Fix 16 ruff lint errors across test files
- All 106 tests pass

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

CONTRIBUTING.md

@@ -0,0 +1,61 @@
+# Contributing
+
+## Setup
+
+```bash
+git clone <repo-url>
+cd ietf-draft-analyzer
+pip install -e ".[test]"
+```
+
+You'll also need:
+- **Anthropic API key**: Set `ANTHROPIC_API_KEY` in `.env` or environment
+- **Ollama**: Running locally with `nomic-embed-text` model for embeddings
+
+## Running Tests
+
+```bash
+pytest tests/ -v
+```
+
+Tests cover: JSON extraction, rating validation, FTS5 sanitization, database operations, data models, Obsidian export.
+
+## Code Conventions
+
+- **CLI**: Click commands in `cli.py` with `@click.option()` decorators. Use the `pass_cfg_db` decorator for config/db lifecycle.
+- **Database**: Tables defined in `db.py` `ensure_tables()`, queries as methods on `Database`. Always use parameterized queries.
+- **Reports**: Report types in `reports.py` `generate_report()`.
+- **LLM calls**: Always cache via `llm_cache` table (prompt SHA-256 hash). Use `cheap=True` for bulk operations.
+- **Output**: Use `rich` for console output.
+- **Web UI**: Flask routes in `app.py`, data access in `data.py` with TypedDict return types, Jinja2 templates.
+
+## Adding a New CLI Command
+
+1. Add the command function in `cli.py` under the appropriate group
+2. Use `@pass_cfg_db` for automatic config/db injection
+3. Add `--dry-run` flag for commands that modify data
+4. Use `rich` tables/panels for output
+
+## Adding a New Report Type
+
+1. Add the report function in `reports.py`
+2. Register it in the `report` CLI group in `cli.py`
+3. Output goes to `data/reports/`
+
+## Adding a New Web UI Page
+
+1. Create template in `src/webui/templates/`
+2. Add data function in `data.py` (with TypedDict return type)
+3. Add route in `app.py`
+4. Add navigation link in `base.html`
+
+## Linting
+
+```bash
+pip install ruff
+ruff check src/ tests/ --select E,F,W --ignore E501
+```
+
+## Project Layout
+
+See README.md for full project structure.