docs: add STATUS.md, docmap.md, encode gardening protocol

Restructure top-level to exactly three .md files:
- AGENTS.md (agent operating instructions)
- README.md (project overview, links to status + docmap)
- STATUS.md (living project status, agent-maintained, human read-only)

Add docs/docmap.md as the single documentation index/map. All docs are
categorized (active, operational guides, historical) with last-reviewed
dates. Includes the agent gardening protocol requiring agents to update
STATUS.md and docmap.md after every work session.

Rewrite AGENTS.md to be lean: points to docmap.md for doc discovery,
encodes the automatic gardening protocol (keep docs/code in sync, grep
for stale paths after renames, update STATUS.md after infrastructure
changes). All references are Gitea-renderable relative links.

Simplify README.md: header links to STATUS.md + docmap.md + AGENTS.md,
doc table replaced with pointer to docmap.md.

🤖 Generated with [Crush](https://github.com/charmassociates/crush)

Assisted-by: GLM-5 via Crush <crush@charm.land>

STATUS.md

@@ -0,0 +1,69 @@
+# Project Status
+
+> **Human read-only. Agents maintain this file automatically after each work
+> session.** Do not edit by hand — the next agent run will overwrite it.
+
+> **Last updated:** 2026-07-28 by Crush (GLM-5)
+
+## Current State: STABLE
+
+The merged PFVCluster repo is fully operational across provisioning, DNS
+infrastructure, and Proxmox cluster ops.
+
+## Completed Work
+
+### Server Provisioning (validated on sectestbed-sandbox)
+- [x] SetupNewSystem.sh deploys end-to-end to rc=0 (Debian 13 trixie)
+- [x] Security hardening: SSH, SCAP-STIG, Wazuh, 2FA (SSH+Cockpit+Webmin)
+- [x] NTP: redundant pfv-netinfra-01/02 (192.168.3.252/253), synced stratum 3
+- [x] DNS resolv.conf: managed static file pointing at netinfra pair
+- [x] Test suite: 5 tests (framework, safe-download, 2fa, https, system-req)
+- [x] VM validation harness: git-based deploy + auto-rollback + guest-agent access
+
+### DNS Cluster (pfv-netinfra-01/02)
+- [x] Production Technitium config replicated from tailscale-router (read-only)
+- [x] 124 zones on both nodes (knel.net + reverse DNS)
+- [x] pfv-netinfra-01 = PRIMARY, pfv-netinfra-02 = SECONDARY
+- [x] Zone replication via rsync systemd timer (every 60s)
+- [x] Credentials + 2FA replicated identically to production
+- [x] Both LAN IPs resolve knel.net device names + recurse externally
+
+### Proxmox Cluster Ops
+- [x] 5 of 7 hosts fully performance-tuned (tsys1/3/6/7/9)
+- [x] Fleet audit complete (PROJECT.md has ground truth)
+- [ ] tsys4: blocked on PCIe NIC + RAM install
+- [ ] tsys5: blocked on 2nd ethernet cable + NVMe install
+- [ ] tsys2: pending rebuild from Win10 to Proxmox
+
+### Repo Merge
+- [x] KNELServerBuild merged into PFVCluster (history preserved)
+- [x] Directory structure reorganized (provisioning/, tests/, perf/, docs/)
+- [x] All docs gardened: links fixed, stale refs removed, tailscale.md updated
+
+## Known Issues
+
+| Issue | Impact | Status |
+|-------|--------|--------|
+| Technitium AXFR uses port 53 (occupied by Pi-hole) | Zone transfer via rsync instead of native AXFR | Workaround in place |
+| `download.proxmox.com` unreachable from sandbox VM | 2 validation tests warn (environmental) | Not a code issue |
+| tsys4/5 hardware pending | Perf tuning incomplete on 2 hosts | Waiting on physical install |
+
+## Pending (next session priorities)
+
+1. Provisioning: add `tailscale up --accept-dns=false` after resolv.conf deploy
+2. DNS: verify Pi-hole forwards knel.net to local Technitium on both nodes
+3. Perf: complete tsys4/5 tuning after hardware install (Friday)
+4. tsys2: rebuild from Win10 to Proxmox (k8s-dedicated host)
+
+## Infrastructure Summary
+
+| Component | Details |
+|-----------|---------|
+| Proxmox hosts | 7 standalone PVE, managed via PDM |
+| DNS primary | pfv-netinfra-01 (192.168.3.252) — Technitium + Pi-hole |
+| DNS secondary | pfv-netinfra-02 (192.168.3.253) — Technitium + Pi-hole |
+| DNS production | tailscale-router (read-only source of truth) |
+| NTP | pfv-netinfra-01/02 (redundant, LAN IPs, stratum 2/3) |
+| Sandbox VM | sectestbed-sandbox (VMID 6000 on pfv-tsys5) |
+| Backup | Proxmox Backup Server (PBS) |
+| Production | Cloudron VPS, Reston VA (this cluster is R&D only) |