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>

docs/blog/css/style.css

@@ -0,0 +1,123 @@
+:root {
+    --bg: #ffffff;
+    --text: #1a1a1a;
+    --muted: #6b7280;
+    --border: #e5e7eb;
+    --accent: #2563eb;
+    --code-bg: #f3f4f6;
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        --bg: #111827;
+        --text: #e5e7eb;
+        --muted: #9ca3af;
+        --border: #374151;
+        --accent: #60a5fa;
+        --code-bg: #1f2937;
+    }
+}
+
+* { margin: 0; padding: 0; box-sizing: border-box; }
+
+body {
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
+    color: var(--text);
+    background: var(--bg);
+    line-height: 1.7;
+    font-size: 17px;
+}
+
+.container {
+    max-width: 720px;
+    margin: 0 auto;
+    padding: 2rem 1.5rem;
+}
+
+nav {
+    border-bottom: 1px solid var(--border);
+    padding: 1rem 0;
+    margin-bottom: 2rem;
+}
+
+nav a {
+    color: var(--accent);
+    text-decoration: none;
+    margin-right: 1.5rem;
+    font-size: 0.9rem;
+}
+
+nav a:hover { text-decoration: underline; }
+nav .site-title { font-weight: 700; font-size: 1.1rem; }
+
+h1 { font-size: 2rem; margin: 1.5rem 0 1rem; line-height: 1.2; }
+h2 { font-size: 1.5rem; margin: 2rem 0 0.75rem; }
+h3 { font-size: 1.2rem; margin: 1.5rem 0 0.5rem; }
+
+p { margin: 0.75rem 0; }
+
+a { color: var(--accent); }
+
+blockquote {
+    border-left: 3px solid var(--accent);
+    padding-left: 1rem;
+    color: var(--muted);
+    margin: 1rem 0;
+}
+
+code {
+    background: var(--code-bg);
+    padding: 0.15rem 0.4rem;
+    border-radius: 3px;
+    font-size: 0.9em;
+}
+
+pre {
+    background: var(--code-bg);
+    padding: 1rem;
+    border-radius: 6px;
+    overflow-x: auto;
+    margin: 1rem 0;
+}
+
+pre code { background: none; padding: 0; }
+
+table {
+    width: 100%;
+    border-collapse: collapse;
+    margin: 1rem 0;
+    font-size: 0.95rem;
+}
+
+th, td {
+    padding: 0.5rem 0.75rem;
+    border: 1px solid var(--border);
+    text-align: left;
+}
+
+th { background: var(--code-bg); font-weight: 600; }
+
+ul, ol { padding-left: 1.5rem; margin: 0.75rem 0; }
+li { margin: 0.25rem 0; }
+
+.post-nav {
+    display: flex;
+    justify-content: space-between;
+    margin-top: 3rem;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border);
+    font-size: 0.9rem;
+}
+
+.post-list { list-style: none; padding: 0; }
+.post-list li { margin: 1rem 0; }
+.post-list a { font-size: 1.1rem; font-weight: 500; }
+.post-list .desc { color: var(--muted); font-size: 0.9rem; }
+
+footer {
+    margin-top: 3rem;
+    padding-top: 1rem;
+    border-top: 1px solid var(--border);
+    color: var(--muted);
+    font-size: 0.85rem;
+}