Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

DATABASE_SETUP_NEEDED.md

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+# Database Setup Required
+
+## Issue
+
+The deployment script is failing at the database connection step because the database user or database doesn't exist.
+
+## Solution
+
+### Option 1: Run Database Setup Script (Recommended)
+
+```bash
+cd ~/projects/proxmox/explorer-monorepo
+sudo bash scripts/setup-database.sh
+```
+
+This will:
+- Create the `explorer` user
+- Create the `explorer` database
+- Set password to `***REDACTED-LEGACY-PW***`
+- Grant all necessary privileges
+
+### Option 2: Manual Setup
+
+```bash
+# Connect as postgres superuser
+sudo -u postgres psql
+
+# Then run these commands:
+CREATE USER explorer WITH PASSWORD '***REDACTED-LEGACY-PW***';
+CREATE DATABASE explorer OWNER explorer;
+GRANT ALL PRIVILEGES ON DATABASE explorer TO explorer;
+\q
+
+# Test connection
+PGPASSWORD='***REDACTED-LEGACY-PW***' psql -h localhost -U explorer -d explorer -c "SELECT 1;"
+```
+
+### Option 3: Check Existing Setup
+
+```bash
+# Check if user exists
+sudo -u postgres psql -c "\du" | grep explorer
+
+# Check if database exists
+sudo -u postgres psql -c "\l" | grep explorer
+
+# Check PostgreSQL is running
+systemctl status postgresql
+```
+
+## After Setup
+
+Once the database is set up, run the deployment script again:
+
+```bash
+cd ~/projects/proxmox/explorer-monorepo
+bash EXECUTE_DEPLOYMENT.sh
+```
+
+## Troubleshooting
+
+### If PostgreSQL is not running:
+```bash
+sudo systemctl start postgresql
+sudo systemctl enable postgresql
+```
+
+### If user exists but password is wrong:
+```bash
+sudo -u postgres psql -c "ALTER USER explorer WITH PASSWORD '***REDACTED-LEGACY-PW***';"
+```
+
+### If database exists but user doesn't have access:
+```bash
+sudo -u postgres psql -d explorer -c "GRANT ALL PRIVILEGES ON DATABASE explorer TO explorer;"
+sudo -u postgres psql -d explorer -c "GRANT ALL ON SCHEMA public TO explorer;"
+```
+
+## Quick Fix Command
+
+```bash
+cd ~/projects/proxmox/explorer-monorepo
+sudo bash scripts/setup-database.sh && bash EXECUTE_DEPLOYMENT.sh
+```
+
+This will set up the database and then run the deployment.
+