feat(templates): add intelligent preset templates for common workflows

- feature-dev.json: Feature development team (Architect + 2 Engineers + Reviewer + Tester)
- bug-fix.json: Bug fix squad (Investigator + Engineer + Tester)
- code-review.json: Code review team (2 Reviewers)
- greenfield.json: Greenfield project team (full squad)
- release.json: Release team (Shipper + Reviewer)
- investigation.json: Investigation team (Investigator + Engineer)
- refactor.json: Refactoring team (Architect + 2 Engineers + Reviewer)
- full-squad.json: Full development squad
- research-and-discovery.json: Research and discovery team
- Update standard-app.json with enhanced configuration

Each template defines team composition with archetype counts

.beads/templates/standard-app.json

@@ -1,18 +1,15 @@
 {
   "id": "standard-app",
-  "name": "Standard Application Swarm",
-  "description": "A balanced team of an Architect and two Coders for standard feature development.",
+  "name": "Standard Application",
+  "description": "Classic balanced team for routine application development. One Architect for design, two Engineers for implementation.",
   "team": [
-    {
-      "archetypeId": "architect",
-      "count": 1
-    },
-    {
-      "archetypeId": "coder",
-      "count": 2
-    }
+    { "archetypeId": "architect", "count": 1 },
+    { "archetypeId": "engineer", "count": 2 }
   ],
+  "protoFormula": "Architect designs and decomposes → Engineers implement in parallel",
+  "color": "#f59e0b",
+  "icon": "📦",
   "createdAt": "2026-02-21T03:22:04.089Z",
-  "updatedAt": "2026-02-21T19:39:45.443Z",
+  "updatedAt": "2026-02-25T00:00:00.000Z",
   "isBuiltIn": true
-}
+}