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/teamlandkarte-mcp/tests/test_read_only_guard.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+import pytest
+
+import teamlandkarte_mcp.database.read_only as ro
+
+
+def test_ensure_select_only_allows_select() -> None:
+    ro.ensure_select_only("SELECT 1")
+
+
+@pytest.mark.parametrize(
+    "sql",
+    [
+        "DELETE FROM t",
+        "UPDATE t SET x = 1",
+        "INSERT INTO t VALUES (1)",
+        "DROP TABLE t",
+    ],
+)
+def test_ensure_select_only_rejects_writes(sql: str) -> None:
+    with pytest.raises(ro.DatabaseError):
+        ro.ensure_select_only(sql)