Integrate dark theme styling from main branch with Angular Material

- Apply dark blue color scheme (#0f172a, #1e293b, #334155) throughout UI
- Update header with blue gradient and Obsidian branding
- Add missing toolbar buttons: Auto-refresh, Seed Data, Search filter
- Implement action buttons (Download, Delete) in artifacts table
- Add client-side search/filtering functionality
- Update app to support sim_source_id field in database
- Move quickstart scripts to repository root for easier access
- Apply dark theme to tables, tabs, and all Material components

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

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

.claude/settings.local.json

@@ -26,7 +26,12 @@
       "Bash(ng serve:*)",
       "Bash(if exist .angular rmdir /s /q .angular)",
       "Bash(dir:*)",
-      "Bash(tree:*)"
+      "Bash(tree:*)",
+      "Bash(git ls-tree:*)",
+      "mcp__ide__getDiagnostics",
+      "Read(//c/Users/Pratik/Desktop/code/**)",
+      "Bash(cat:*)",
+      "Bash(git add:*)"
     ],
     "deny": [],
     "ask": []