Add automatic plugin installation on first Docker deployment

- Add docker-entrypoint.sh: runs migrations and bootstraps plugins
- Add bootstrap-plugins.sh: installs all plugins (disabled by default)
- Update Dockerfile to use entrypoint
- Plugins can now be enabled via Settings UI after first deployment
- Idempotent: safe to run multiple times
- Solves issue where imported prod databases had tables but no plugin registry

scripts/bootstrap-plugins.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+# Bootstrap plugin installation on first deployment.
+# Installs all available plugins but leaves them disabled, so admins can
+# enable what they need via Settings UI. Idempotent: safe to run multiple times.
+
+set -e
+
+REGISTRY_FILE="/app/instance/plugins.json"
+
+if [ ! -f "$REGISTRY_FILE" ]; then
+    echo "==> First deployment detected: installing all available plugins (disabled by default)"
+
+    # Get list of all available plugins
+    PLUGINS=$(flask plugin list 2>/dev/null | grep -E '^\s+\w+\s+v[0-9]' | awk '{print $1}')
+
+    for plugin in $PLUGINS; do
+        echo "  Installing $plugin..."
+        flask plugin install "$plugin" || {
+            echo "  WARNING: Failed to install $plugin, skipping"
+            continue
+        }
+    done
+
+    echo "==> All plugins installed (disabled). Enable them in Settings > Plugins"
+else
+    echo "==> Plugin registry exists, skipping bootstrap"
+fi