GT AI OS Community v2.0.33 - Add NVIDIA NIM and Nemotron agents

- Updated python_coding_microproject.csv to use NVIDIA NIM Kimi K2
- Updated kali_linux_shell_simulator.csv to use NVIDIA NIM Kimi K2
  - Made more general-purpose (flexible targets, expanded tools)
- Added nemotron-mini-agent.csv for fast local inference via Ollama
- Added nemotron-agent.csv for advanced reasoning via Ollama
- Added wiki page: Projects for NVIDIA NIMs and Nemotron

scripts/postgresql/docker-entrypoint-wrapper.sh

@@ -0,0 +1,93 @@
+#!/bin/bash
+# GT 2.0 PostgreSQL Custom Entrypoint
+# Ensures pg_hba.conf is configured on EVERY startup, not just initialization
+
+set -e
+
+echo "🔧 GT 2.0 PostgreSQL Startup - Configuring replication..."
+
+# Function to configure pg_hba.conf
+configure_pg_hba() {
+    local pg_hba_path="/var/lib/postgresql/data/pg_hba.conf"
+    
+    if [ -f "$pg_hba_path" ]; then
+        echo "📝 Configuring pg_hba.conf for replication..."
+        
+        # Remove any existing GT 2.0 replication entries to avoid duplicates
+        grep -v "# GT 2.0 Replication" "$pg_hba_path" > /tmp/pg_hba_clean.conf || true
+        mv /tmp/pg_hba_clean.conf "$pg_hba_path"
+        
+        # Add replication entries
+        cat >> "$pg_hba_path" << 'EOF'
+
+# GT 2.0 Replication Configuration
+host    replication     replicator      172.16.0.0/12           md5
+host    replication     replicator      172.20.0.0/16           md5  
+host    replication     replicator      172.18.0.0/16           md5
+host    replication     replicator      10.0.0.0/8              md5
+host    all             all             172.16.0.0/12           md5
+host    all             all             172.20.0.0/16           md5
+host    all             all             172.18.0.0/16           md5
+host    all             all             10.0.0.0/8              md5
+EOF
+        
+        echo "✅ pg_hba.conf configured for replication"
+    else
+        echo "⚠️  pg_hba.conf not found - will be created during initialization"
+    fi
+}
+
+# If PostgreSQL data directory exists, configure it before starting
+if [ -d /var/lib/postgresql/data ] && [ -f /var/lib/postgresql/data/PG_VERSION ]; then
+    configure_pg_hba
+fi
+
+# Function to update user passwords from environment variables
+update_user_passwords() {
+    echo "🔐 Updating user passwords from environment variables..."
+
+    # Update gt2_tenant_user password if TENANT_USER_PASSWORD is set
+    if [ -n "$TENANT_USER_PASSWORD" ]; then
+        psql -U postgres -d gt2_tenants -c "ALTER USER gt2_tenant_user WITH PASSWORD '$TENANT_USER_PASSWORD';" >/dev/null 2>&1 && \
+            echo "✅ Updated gt2_tenant_user password" || \
+            echo "⚠️  Could not update gt2_tenant_user password (user may not exist yet)"
+    fi
+
+    # Update replicator password if TENANT_REPLICATOR_PASSWORD is set
+    if [ -n "$POSTGRES_REPLICATION_PASSWORD" ]; then
+        psql -U postgres -d gt2_tenants -c "ALTER USER replicator WITH PASSWORD '$POSTGRES_REPLICATION_PASSWORD';" >/dev/null 2>&1 && \
+            echo "✅ Updated replicator password" || \
+            echo "⚠️  Could not update replicator password (user may not exist yet)"
+    fi
+}
+
+# Function to configure after PostgreSQL starts
+configure_after_start() {
+    sleep 5  # Wait for PostgreSQL to fully start
+    configure_pg_hba
+
+    # Reload configuration if PostgreSQL is running
+    if pg_isready -U postgres >/dev/null 2>&1; then
+        echo "🔄 Reloading PostgreSQL configuration..."
+        psql -U postgres -c "SELECT pg_reload_conf();" >/dev/null 2>&1 || true
+
+        # Update passwords from environment variables
+        update_user_passwords
+    fi
+}
+
+# Configure after PostgreSQL starts (in background)
+configure_after_start &
+
+echo "🚀 Starting PostgreSQL with GT 2.0 configuration..."
+
+# Pre-create tablespace directories with proper ownership for Linux compatibility
+# Required for x86/DGX deployments where bind mounts preserve host ownership
+echo "📁 Preparing tablespace directories..."
+mkdir -p /var/lib/postgresql/tablespaces/tenant_test
+chown postgres:postgres /var/lib/postgresql/tablespaces/tenant_test
+chmod 700 /var/lib/postgresql/tablespaces/tenant_test
+echo "✅ Tablespace directories ready"
+
+# Call the original PostgreSQL entrypoint
+exec docker-entrypoint.sh "$@"