feat: restore full template set with permissionMode/agent support and fix validateTool

[Copilot]

Dynamic template generation was missing 10 templates from the established config, lacked acceptEdits vs plan permission differentiation, and validateTool was returning early on the first error instead of accumulating all failures.

Template coverage

Added missing categories to CATEGORY_PROMPTS:

• commit-atomic — uses --agent build on opencode
• review-security, review-refactor, review-performance
• remove-verbal, remove-ai-slop
• tidy-first, simplify
• simplifier — CCS-only, delegates to @code-simplifier:code-simplifier subagent
• logical-grouping-pull-request

Permission mode per template

CATEGORY_PROMPTS now carries permissionMode and agent fields. buildCommandForTool applies them per tool:

// ccs profiles: substitutes permission mode in promptCommand
const cmd = tool.promptCommand.replace("--permission-mode plan", `--permission-mode ${permissionMode}`);

// claude: respects permissionMode directly
`claude --permission-mode ${permissionMode} -p '...'`

// opencode: respects agent flag
`opencode run --model opencode/minimax-m2.5-free --agent ${agent} '...'`

Editing templates (types, test, docs, draft-pull-request, remove-*, tidy-first, simplify, simplifier, logical-grouping-pull-request) use acceptEdits; read-only templates use plan.

Other fixes

• Restored "on git" to the commit-zen prompt
• validateTool now accumulates all validation errors instead of returning on the first failure

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