infra: hf-pdocker-01 Phase 2 migration — all services returned from failover

Node hf-pdocker-01 hardware fully repaired and rebuilt (2026-03-08). This
commit captures the completed Phase 2 migration where all failover services
are returned from hf-pdocker-02/bart back to hf-pdocker-01 as their permanent
home.

New compose stacks for hf-pdocker-01:
- adguard: AdGuard Home DNS/ad-blocking (:3000, :53)
- traefik: Reverse proxy with TLS (:80/:443/:8090), .env.example included
- monitoring: Grafana, Prometheus, Alertmanager, InfluxDB, Blackbox, matrix-receiver
- smarthome: Home Assistant (:8123), ESPHome (:6052), Mosquitto (:1883/:8883)
- matrix: Synapse homeserver (:8008) + synapse-db + well-known (:8010)
- guacamole: Guacamole (:8199) + guacd + guacamole-db (local MySQL)
- farm-manager: Farm Manager API (:8888)

Updated compose stacks for hf-pdocker-01:
- frigate-notify: MQTT/Matrix hosts reverted from bart (.167) to hf-pdocker-01 (.192)

Documentation:
- docs/plans/2026-03-08-hf-pdocker-01-phase2-migration.md (new)
- CLAUDE.md: Full service distribution update — failover labels removed,
  hf-pdocker-02/bart cleaned up to reflect only permanent services,
  NetClaw/Aaron added to hf-pdocker-02, DNSStubListener fix noted

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

compose/hf-pdocker-01/matrix/docker-compose.yml

@@ -0,0 +1,86 @@
+services:
+  synapse:
+    image: matrixdotorg/synapse:latest
+    container_name: synapse
+    restart: unless-stopped
+    environment:
+      - SYNAPSE_SERVER_NAME=mess.hobbs.farm
+      - SYNAPSE_REPORT_STATS=no
+    volumes:
+      - /mnt/docker-data/configs/matrix/data:/data
+    ports:
+      - "8008:8008"
+    networks:
+      - matrix-internal
+    depends_on:
+      synapse-db:
+        condition: service_healthy
+    mem_limit: 1G
+    memswap_limit: 1G
+    healthcheck:
+      test: ["CMD-SHELL", "curl -fSs http://localhost:8008/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 60s
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "50m"
+        max-file: "3"
+
+  wellknown:
+    image: nginx:alpine
+    container_name: matrix-wellknown
+    restart: unless-stopped
+    volumes:
+      - /mnt/docker-data/configs/matrix/wellknown:/usr/share/nginx/html/.well-known/matrix:ro
+    ports:
+      - "8010:80"
+    mem_limit: 64M
+    memswap_limit: 64M
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q --spider http://localhost:80/ || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 15s
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "50m"
+        max-file: "3"
+
+  synapse-db:
+    image: postgres:15-alpine
+    container_name: synapse-db
+    user: "1024:100"
+    restart: unless-stopped
+    environment:
+      - POSTGRES_USER=synapse
+      - POSTGRES_PASSWORD=synapse
+      - POSTGRES_DB=synapse
+      - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --lc-collate=C --lc-ctype=C
+    volumes:
+      - /mnt/docker-data/databases/matrix-db:/var/lib/postgresql/data
+    networks:
+      - matrix-internal
+    mem_limit: 256M
+    memswap_limit: 256M
+    labels:
+      - "com.centurylinklabs.watchtower.enable=false"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U synapse -d synapse"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 30s
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "50m"
+        max-file: "3"
+
+networks:
+  matrix-internal:
+    driver: bridge