feat: add category and scope to specs for enhanced filtering and organization

- Introduced SpecCategory and SpecScope types to categorize specs by workflow stage and scope (global/project).
- Updated Spec interface to include category and scope properties.
- Enhanced SpecCard component to display category and scope badges.
- Implemented category and scope filtering in SpecsSettingsPage.
- Updated localization files to support new category and scope labels.
- Modified spec loading commands to utilize category instead of keywords.
- Adjusted spec index builder to handle category and scope during spec parsing.
- Updated seed documents to include category information.

.claude/skills/team-ultra-analyze/roles/explorer/commands/explore.md

@@ -81,7 +81,7 @@ Session: ${sessionFolder}
 ## MANDATORY FIRST STEPS
 1. Run: ccw tool exec get_modules_by_depth '{}'
 2. Execute searches: ${strategy.searches.map(s => `"${s}"`).join(', ')}
-3. Run: ccw spec load --keywords exploration
+3. Run: ccw spec load --category exploration
 
 ## Exploration Focus (${perspective} angle)
 - **Depth**: ${strategy.depth}