Migrate all repos into monorepo context folders

Bahn: aisupport, Analyse-O2C-C2S, awesome-bahn-mcp-servers, beam-mcp,
      Confluence_Bot, db-planet-mcp-server, O2C-Harness, project-audit,
      Projekt-KIQ-HP, teamlandkarte-mcp
Dhive: Jury-Voting
Privat: CV, NoteGraph (NOTE: NoteGraph needs complete redo after consolidation)
Shared: AI-Orchestrator, OrgMyLife, power_skills_and_more
Shared/references: symphony (read-only)

Bahn repos remain available as independent remotes - this monorepo
pulls them in via subtree, the originals are untouched.

bahn/Analyse-O2C-C2S/.gitignore

@@ -0,0 +1,28 @@
+# Secrets - NEVER commit
+.secrets
+.env
+*.key
+*.pem
+
+# OS files
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# OneDrive conflicts
+*-conflict-*
+
+# IDE
+.vscode/
+.idea/
+
+# Python
+__pycache__/
+*.pyc
+.pytest_cache/
+
+# Node
+node_modules/
+
+# Large HTML exports (content extracted to analysis/)
+data/einfachbahn/DB-Planet-*