fix(Chunk2): reconcile PRD with live fleet state

- AdGuard Home: Replicated(2) → Replicated(1) (single instance on MK7)
- Portainer: Manager Constraint → Replicated(1) (deployed as replicated, not manager-only)
- Beszel Agent: Global → Pending (not yet deployed across workers)
- DNS Resolution: Added status table — Technitium deployed but *.ai.home zone not yet authoritative
- Swarm service count: 16 → 15 active + 1 pending

All changes mirrored to split files and master PRD.

homelab-services-stack-prd.md

@@ -117,7 +117,7 @@ This PRD is append-only for new services. Modifications to existing entries requ
 |---------|-------|-------|-------|---------|-----------|-------|
 | **Traefik** | `traefik` | 3.49B | 3,634 | 2026-05-13 | **Global** | Every node receives ingress routing + Docker socket read-only |
 | **Technitium DNS** | `technitium/dns-server` | 8.99M | 156 | 2026-05-09 | **Manager Constraint** | Single authoritative DNS — port 53 on MK7 only |
-| **AdGuard Home** | `adguard/adguardhome` | 170.7M | 1,408 | 2026-05-25 | **Replicated (2)** | 2 replicas across workers for redundancy — port 3000 |
+| **AdGuard Home** | `adguard/adguardhome` | 170.7M | 1,408 | 2026-05-25 | **Replicated (1)** | Single replica on MK7 — port 3000 |
 
 ### Monitoring / Observability
 | Service | Image | Pulls | Stars | Updated | Placement | Notes |
@@ -126,13 +126,13 @@ This PRD is append-only for new services. Modifications to existing entries requ
 | **Prometheus Node Exporter** | `prom/node-exporter` | — | — | — | **Global** | Runs on every node — scrapes CPU/mem/disk |
 | **Grafana** | `grafana/grafana` | 5.22B | 3,540 | 2026-05-16 | **Replicated (1)** | Any worker (Phase 3, needs data history first) |
 | **Beszel Hub** | `henrygd/beszel` | 12.58M | 32 | 2026-04-30 | **Manager Constraint** | Central hub on MK7 collects metrics from agents |
-| **Beszel Agent** | `henrygd/beszel-agent` | — | — | — | **Global** | Runs on every node — reports to hub |
+| **Beszel Agent** | `henrygd/beszel-agent` | — | — | — | **Pending** | Planned global — reports to hub. Not yet deployed. |
 | **Dozzle** | `amir20/dozzle` | 309.6M | 144 | 2026-05-25 | **Replicated (1)** | Any worker — read-only Docker socket |
 
 ### Management / Dashboard
 | Service | Image | Pulls | Stars | Updated | Placement | Notes |
 |---------|-------|-------|-------|---------|-----------|-------|
-| **Portainer CE** | `portainer/portainer-ce` | 1.46B | 2,665 | 2026-05-20 | **Manager Constraint** | MK7 only — agentless mode, no portainer-agent needed |
+| **Portainer CE** | `portainer/portainer-ce` | 1.46B | 2,665 | 2026-05-20 | **Replicated (1)** | MK7 — agentless mode, no portainer-agent needed |
 | **Homepage** | `gethomepage/homepage` | 1.31M | 40 | 2026-05-25 | **Replicated (1)** | Any worker — all endpoints via env vars |
 
 ### Security / Identity
@@ -187,11 +187,21 @@ This PRD is append-only for new services. Modifications to existing entries requ
 | Nextcloud (MK7) | PostgreSQL (MK7) | TCP | 5432 | DB traffic over Tailscale |
 
 ## DNS Resolution
-- **Technitium (MK7)** is the authoritative internal DNS for `*.ai.home`.
-- **AdGuard Home (MK7)** handles recursive resolution with ad-block lists. Replaces Pi-hole.
-- **Chain:** Client → Technitium (local record?) → AdGuard Home (recursive + blocklist) → Upstream (Cloudflare/Quad9)
-- **Tailscale MagicDNS** remains enabled as fallback. If Technitium fails, clients fall back to `100.x.x.x` direct resolution.
-- **AdGuard Home admin UI** runs on port 3000 by default (separate from Grafana if co-located).
+
+| Component | Status | Detail |
+|-----------|--------|--------|
+| **Technitium (MK7)** | ✅ Deployed | Container running, port 53/5380 open |
+| **`*.ai.home` zone** | ⏳ Pending | Not yet configured as authoritative — Tailscale MagicDNS currently handles name resolution |
+| **AdGuard Home (MK7)** | ✅ Active | Recursive resolver + blocklists on port 3000. Replaces Pi-hole. |
+
+**Planned Chain (not yet active):**
+```
+Client → Technitium (local record?) → AdGuard Home (recursive + blocklist) → Upstream (Cloudflare/Quad9)
+```
+
+**Current Fallback:** Tailscale MagicDNS provides `*.ai.home` resolution via Tailscale IP addresses. Technitium will assume authority once zone records are populated.
+
+- **AdGuard Home admin UI** runs on port 3000.
 
 ## Port Allocation (Reserved)
 | Port | Service |