feat(backend): add standalone data plane

Replace the Supabase application data plane with the Node/PostgreSQL API, migrate mobile, admin, web, and MCP callers, add controlled cutover tooling, and define hardened Dokploy infrastructure.

.dockerignore

@@ -1,14 +1,35 @@
 node_modules
+**/node_modules
 .git
 .gitignore
 *.md
 .env*
 .DS_Store
 dist
+**/dist
 .expo
-android
-ios
+**/.expo
+**/android
+**/ios
 *.log
 .turbo
+**/.turbo
 coverage
 .nyc_output
+apps/admin
+apps/mcp
+!apps/mcp
+!apps/mcp/**
+apps/mobile
+apps/supabase
+apps/web
+e2e
+evidence
+etc
+infra
+scripts
+terraform
+.agents
+.claude
+.codex
+.ralph