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/db-planet-mcp-server/infra/modules/managed-identity.bicep

@@ -0,0 +1,26 @@
+// User Managed Identity module
+
+@description('The environment name (DEV, IAT, Prod)')
+param environment string
+
+@description('The location for the managed identity')
+param location string
+
+@description('Tags to apply to resources')
+param tags object
+
+@description('Unique token for resource naming')
+param resourceToken string
+
+var managedIdentityName = 'id-dbplanet-${toLower(environment)}-${resourceToken}'
+
+resource managedIdentity 'Microsoft.ManagedIdentity/userAssignedIdentities@2024-11-30' = {
+  name: managedIdentityName
+  location: location
+  tags: tags
+}
+
+output managedIdentityName string = managedIdentity.name
+output managedIdentityId string = managedIdentity.id
+output managedIdentityPrincipalId string = managedIdentity.properties.principalId
+output managedIdentityClientId string = managedIdentity.properties.clientId