docs: unified README and AGENTS.md for merged repo

Replace the KNELServerBuild README with a unified PFVCluster README
covering both provisioning and cluster ops. Update AGENTS.md to document
the merged repo layout, key scripts, and project context. Consolidate
all documentation under docs/.

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README.md

@@ -1,21 +1,70 @@
-# KNEL FetchApply
+# PFVCluster
 
-## Repo Issues
-https://projects.knownelement.com/project/reachableceo-vptechnicaloperations/timeline
+Unified infrastructure repo for the Known Element Enterprises Proxmox R&D cluster.
+Combines server provisioning, Proxmox cluster operations, and DNS infrastructure.
 
-## Repo Discussion
-https://community.turnsys.com/c/chieftechnologyandproductofficer/26
+## Directory Structure
 
+```
+provisioning/        Server provisioning (SetupNewSystem.sh, security hardening,
+                     2FA, NTP/DNS config, SNMP, Dell OMSA)
+tests/               Test suite + VM validation harness
+dns-cluster-setup/   Technitium DNS cluster replication scripts
+perf/                Proxmox performance tuning, fleet audit, iperf, switch diagnostics
+netinfra/            pfv-netinfra-01/02 DNS/NTP setup + audit scripts
+switches/            Switch configuration captures
+docs/                All documentation (PROJECT.md, SECURITY.md, tailscale.md, etc.)
+vendor/              Vendored KNELShellFramework
+```
 
-## Repo discription 
-Known Element Enterprises (the entity serving as the TSYS Group management company) (through it’s executive leader, the COO) provides core IT/back office systems/services/support on a hands off/fully delegated authortity basis to the CCO and the orgs/members.
+## Quick Start
 
-One of those functions is the provisoning of Linux servers. This repository is the Infrastructure As Code (IAC) repository for TSYS. 
+### Provision a new server
+```bash
+sudo bash provisioning/SetupNewSystem.sh
+```
+Installs packages, applies security hardening (SSH, SCAP-STIG, 2FA, Wazuh),
+configures NTP/DNS/SNMP/syslog/postfix.
 
-In the future it will be used via FetchApply https://github.com/P5vc/fetch-apply
+### Validate provisioning on the sandbox VM
+```bash
+VM_ID=6000 ./tests/vm-validation.sh all
+```
+Snapshots, deploys, runs the test suite, auto-rolls back on failure.
 
-## Usage
+### Run the test suite
+```bash
+./tests/run-tests.sh all
+```
 
-git clone this repo
-cd FetchApply/ProjectCode
-bash SetupNewSystem.sh
+### Deploy DNS cluster setup
+```bash
+cd dns-cluster-setup/
+./setup.sh all
+```
+
+### Deploy perf tunings to hosts
+```bash
+cd perf/
+./deploy-check.sh    # read-only data collection
+./deploy-tuning.sh   # apply sysctl/tuned/NFS tunings
+```
+
+## Key Documentation
+
+| Doc | Contents |
+|-----|----------|
+| `docs/PROJECT.md` | Comprehensive fleet report (7 hosts, VM inventory, storage) |
+| `docs/SECURITY.md` | Security architecture and hardening details |
+| `docs/tailscale.md` | Tailscale vs managed DNS analysis |
+| `docs/DEPLOYMENT.md` | Deployment procedures |
+| `docs/TODO.md` | Pending hardware work (tsys2/4/5) |
+| `dns-cluster-setup/README.md` | DNS cluster setup guide |
+
+## Architecture
+
+- **Proxmox hosts**: 7 standalone PVE installs managed via PDM
+- **DNS**: Technitium (authoritative) + Pi-hole (recursive) on pfv-netinfra-01/02
+- **NTP**: pfv-netinfra-01/02 (redundant, LAN IPs)
+- **Production**: Cloudron VPS in Reston VA (this cluster is R&D only)
+- **Backups**: Proxmox Backup Server (PBS)