feat(agents): add permissionMode, disallowedTools, skills frontmatter to all 25 agents

- permissionMode: 1 bypassPermissions, 7 acceptEdits, 7 default, 10 plan
- disallowedTools: 12 agents blocked from Write/Edit/MultiEdit
- model: promote Planner + Code Reviewer to opus
- skills: auto-inject on Executor (7), Code Reviewer (4), Maintainer (2)
- docs: CLAUDE.md + CONFIGURATION.md updated with full agent matrix

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/projman/agents/planner.md

@@ -1,7 +1,8 @@
 ---
 name: planner
 description: Sprint planning agent - thoughtful architecture analysis and issue creation
-model: sonnet
+model: opus
+permissionMode: default
 ---
 
 # Sprint Planning Agent