docs: document gitea-first homelab deploys

Switch CLAUDE.md and AGENTS.md to Gitea-primary language. Remove
github-runner from the management plane now that Gitea Actions handles
Caddy reloads and famapp builds. Disable GitHub deploy workflow.
Update apply-compose.ps1 status text.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/deploy.yml

@@ -1,30 +1,14 @@
 name: Deploy to valhalla
 
-# Post-split deploy. The application stacks (foundry, media, notify, monitoring,
-# remote, owncloud, resume, famapp, authentik, dev) live under stacks/<domain>/
-# and are deployed by Portainer git polling — the runner does NOT touch them.
-# Caddy lives in its own Portainer git stack (stacks/proxy/) and is likewise
-# deployed by Portainer; this workflow only pushes the Caddyfile and triggers
-# a hot reload on the running Caddy container.
+# Deployment moved to Gitea Actions (.gitea/workflows/deploy-caddy.yml).
+# This workflow is kept as a manual fallback only.
 
 on:
-  push:
-    branches: [main]
-    paths:
-      - Caddyfile
-      - .github/workflows/deploy.yml
-
-env:
-  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+  workflow_dispatch:
 
 jobs:
   deploy:
     runs-on: self-hosted
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Push Caddyfile and reload Caddy
-        run: |
-          cp Caddyfile /config/caddy/Caddyfile
-          docker exec caddy caddy reload --config /etc/caddy/Caddyfile
+      - name: Disabled
+        run: echo "Deployment moved to Gitea Actions."