fix: add missing impact and requires_restart fields to config metadata

- Added infer_impact() function to determine configuration impact levels
- Added infer_requires_restart() function to determine restart requirements
- Updated export_config_metadata.py to include these fields in JSON output
- Fixes ConfigurationTable.tsx error: "Cannot read properties of undefined (reading 'toUpperCase')"
- All 218 configuration settings now include impact and requires_restart fields
- Fixed type annotations and linting issues in extract_config_schema.py

🤖 Generated with [Claude Code](https://claude.ai/code)

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

docs/scripts/generate_docs.sh

@@ -30,9 +30,9 @@ cd "$(dirname "$0")/.."
 # Track any failures
 FAILED_TASKS=()
 
-# 1. Export configuration metadata
-echo "📊 Exporting configuration metadata..."
-if python scripts/export_config_metadata.py; then
+# 1. Extract configuration schema and export metadata
+echo "📊 Extracting configuration schema and exporting metadata..."
+if python ../scripts/extract_config_schema.py && python scripts/export_config_metadata.py; then
     echo "✅ Configuration metadata exported successfully"
 else
     echo "⚠️  Warning: Failed to export configuration metadata"
@@ -47,7 +47,6 @@ import sys
 sys.path.insert(0, '..')
 from superset.app import create_app
 from superset.cli.update import update_api_docs
-from flask.cli import with_appcontext
 import os
 
 # Set required environment variables