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/O2C-Harness/scm-info.yaml

@@ -0,0 +1,15 @@
+---
+# Docs: https://git.tech.rz.db.de/db-inner-source/scm-info-json-schema
+version: v3
+license: LicenseRef-DBISL
+contacts:
+  - ${CONTACT_EMAIL}
+confidentiality: internal
+reference-ids:
+  - none
+protected-branches:
+  - main
+custom:
+  integrity: normal
+  availability: normal
+  confidentiality: normal