Initial commit: RIPE CIDR/FQDN collector

Collector daemon, FastAPI server (addresses, diff, collect, sources),
SQLite storage with change journal, Docker Compose deployment,
tests, documentation and project rules.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,17 @@
+venv/
+__pycache__/
+.pytest_cache/
+.git/
+data.json
+fqdn_data.json
+*.lock
+*.tmp
+*.corrupt-*
+status.json
+.env
+*.db
+*.db-wal
+*.db-shm
+*.migrated-*
+collect_request.json
+graphify-out/