feat(indeedhub): manifest-driven 7-member stack, orchestrator-first (#20 phase 3)

Author the IndeedHub stack as 7 manifests (postgres/redis/minio/relay/api/
ffmpeg + frontend) and route install_indeedhub_stack through the
orchestrator first (immich pattern), falling back to the legacy installer
only when the manifests aren't deployed.

Data-preserving by construction — the manifests reproduce the live install
exactly so an existing node ADOPTS rather than recreates:
- container_name = the live hyphenated names the runtime already references
  (health_monitor tiers/deps, crash_recovery).
- named volumes indeedhub-{postgres,redis,minio,relay}-data (not bind mounts).
- dedicated indeedhub-net + network_aliases [postgres|redis|minio|relay|api]
  so the api/ffmpeg env hostnames and the frontend nginx upstreams resolve
  unchanged.
- generated_secrets (indeedhub-db-password/-minio-password owned by their
  backends, indeedhub-jwt by the api) reuse the live /var/lib/archipelago/
  secrets values (ensure_one no-ops on existing files; postgres pw is fixed
  at PGDATA init). minio user "indeeadmin" + AES_MASTER_SECRET literal kept.

The frontend carries the post_install hook (#20) that replaces the hardcoded
patch_indeedhub_nostr_provider: strip X-Frame-Options, refresh
nostr-provider.js from /opt/archipelago/web-ui, inject the <script> if
absent, reload nginx — defensive/idempotent since indeedhub:1.0.0 already
bakes these. Frontend manifest also corrected off its dead Next.js shape
(health check now nginx :7777, tmpfs /run + /var/cache/nginx).

Builds + unit-tested; live adoption/lifecycle verification on .228 next.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/indeedhub-relay/manifest.yml

@@ -0,0 +1,47 @@
+app:
+  id: indeedhub-relay
+  name: IndeedHub Nostr Relay
+  version: "0.9.0"
+  description: nostr-rs-relay backing IndeedHub's Nostr identity + comments.
+  category: community
+
+  # Hyphen name matches runtime references + the live container (adoption);
+  # alias `relay` is the short hostname the frontend nginx proxies to
+  # (http://relay:8080 for the /relay websocket).
+  container_name: indeedhub-relay
+
+  container:
+    image: 146.59.87.168:3000/lfg2025/nostr-rs-relay:0.9.0
+    pull_policy: if-not-present
+    network: indeedhub-net
+    network_aliases: [relay]
+
+  dependencies:
+    - storage: 2Gi
+
+  resources:
+    memory_limit: 256Mi
+    disk_limit: 2Gi
+
+  security:
+    capabilities: []
+    readonly_root: false
+    network_policy: isolated
+
+  ports: []
+
+  # Named volume matches the live indeedhub-relay-data volume on .228.
+  volumes:
+    - type: volume
+      source: indeedhub-relay-data
+      target: /usr/src/app/db
+      options: [rw]
+
+  environment: []
+
+  health_check:
+    type: tcp
+    endpoint: localhost:8080
+    interval: 30s
+    timeout: 5s
+    retries: 3