Add VPN configuration tools and agent documentation

Created comprehensive VPN setup tooling for Peaceful Spirit L2TP/IPsec connection
and enhanced agent documentation framework.

VPN Configuration (PST-NW-VPN):
- Setup-PST-L2TP-VPN.ps1: Automated L2TP/IPsec setup with split-tunnel and DNS
- Connect-PST-VPN.ps1: Connection helper with PPP adapter detection, DNS (192.168.0.2), and route config (192.168.0.0/24)
- Connect-PST-VPN-Standalone.ps1: Self-contained connection script for remote deployment
- Fix-PST-VPN-Auth.ps1: Authentication troubleshooting for CHAP/MSChapv2
- Diagnose-VPN-Interface.ps1: Comprehensive VPN interface and routing diagnostic
- Quick-Test-VPN.ps1: Fast connectivity verification (DNS/router/routes)
- Add-PST-VPN-Route-Manual.ps1: Manual route configuration helper
- vpn-connect.bat, vpn-disconnect.bat: Simple batch file shortcuts
- OpenVPN config files (Windows-compatible, abandoned for L2TP)

Key VPN Implementation Details:
- L2TP creates PPP adapter with connection name as interface description
- UniFi auto-configures DNS (192.168.0.2) but requires manual route to 192.168.0.0/24
- Split-tunnel enabled (only remote traffic through VPN)
- All-user connection for pre-login auto-connect via scheduled task
- Authentication: CHAP + MSChapv2 for UniFi compatibility

Agent Documentation:
- AGENT_QUICK_REFERENCE.md: Quick reference for all specialized agents
- documentation-squire.md: Documentation and task management specialist agent
- Updated all agent markdown files with standardized formatting

Project Organization:
- Moved conversation logs to dedicated directories (guru-connect-conversation-logs, guru-rmm-conversation-logs)
- Cleaned up old session JSONL files from projects/msp-tools/
- Added guru-connect infrastructure (agent, dashboard, proto, scripts, .gitea workflows)
- Added guru-rmm server components and deployment configs

Technical Notes:
- VPN IP pool: 192.168.4.x (client gets 192.168.4.6)
- Remote network: 192.168.0.0/24 (router at 192.168.0.10)
- PSK: rrClvnmUeXEFo90Ol+z7tfsAZHeSK6w7
- Credentials: pst-admin / 24Hearts$

Files: 15 VPN scripts, 2 agent docs, conversation log reorganization,
guru-connect/guru-rmm infrastructure additions

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

projects/msp-tools/guru-rmm/server/migrations/003_extended_metrics.sql

@@ -0,0 +1,34 @@
+-- Extended metrics and agent state
+-- Adds columns for uptime, user info, IPs, and network state storage
+
+-- Add extended columns to metrics table
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS uptime_seconds BIGINT;
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS boot_time BIGINT;
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS logged_in_user VARCHAR(255);
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS user_idle_seconds BIGINT;
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS public_ip VARCHAR(45);  -- Supports IPv6
+
+-- Agent state table for current/latest agent information
+-- This stores the latest snapshot of extended agent info (not time-series)
+CREATE TABLE IF NOT EXISTS agent_state (
+    agent_id UUID PRIMARY KEY REFERENCES agents(id) ON DELETE CASCADE,
+    -- Network state
+    network_interfaces JSONB,
+    network_state_hash VARCHAR(32),
+    -- Latest extended metrics (cached for quick access)
+    uptime_seconds BIGINT,
+    boot_time BIGINT,
+    logged_in_user VARCHAR(255),
+    user_idle_seconds BIGINT,
+    public_ip VARCHAR(45),
+    -- Timestamps
+    network_updated_at TIMESTAMPTZ,
+    metrics_updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+-- Index for finding agents by public IP (useful for diagnostics)
+CREATE INDEX IF NOT EXISTS idx_agent_state_public_ip ON agent_state(public_ip);
+
+-- Add memory_total_bytes and disk_total_bytes to metrics for completeness
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS memory_total_bytes BIGINT;
+ALTER TABLE metrics ADD COLUMN IF NOT EXISTS disk_total_bytes BIGINT;