feat: 根目录文档、脚本、gitignore

.agents/skills/tgassist/references/gate_recommendation_matrix.md

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+# Gate Recommendation Matrix (tgassist)
+
+> System recommends gates based on project scale and risk level. User confirmation is required.
+
+## Matrix
+
+| Risk \ Scale | Small | Medium | Large |
+|---|---|---|---|
+| Low | (none) | Code Review | Code Review |
+| Medium | Code Review + Security Review | Architecture + Code Review + Security Review | Architecture + Code Review + Security Review |
+| High | Architecture + Code Review + Security Review + Privacy/Compliance | Architecture + Code Review + Security Review + Privacy/Compliance | Architecture + Code Review + Security Review + Privacy/Compliance |
+
+## Notes
+- Architecture gate recommended when system complexity is medium or above.
+- Privacy/Compliance gate recommended for high-risk or personal data handling projects.
+- User can override recommendations, but must record decision and risk acceptance.

.agents/skills/tgassist/references/project_yaml_schema.md

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+# project.yaml Schema (tgassist)
+
+## Fields
+
+- `schema.name`:
+  - Value: `tgassist.project`
+
+- `schema.version`:
+  - Value: `0.1`
+
+- `project.name`:
+  - Human-readable project name
+
+- `project.alias`:
+  - Short slug used for directory naming
+
+- `project.description`:
+  - One-line description
+
+- `project.owner`:
+  - Primary owner (role/person)
+
+- `project.created_at`:
+  - ISO date (YYYY-MM-DD)
+
+- `governance.scale`:
+  - Enum: `small | medium | large`
+
+- `governance.risk_level`:
+  - Enum: `low | medium | high`
+
+- `governance.optional_gates`:
+  - `architecture_design`: `enabled | disabled`
+  - `code_review`: `enabled | disabled`
+  - `security_review`: `enabled | disabled`
+  - `privacy_compliance`: `enabled | disabled`
+
+- `governance.git_policy`:
+  - `enabled`: `true | false`
+  - `commit_format`: string, default `[role][phase] summary - reason`
+
+- `evidence_sources`:
+  - `codemap`: path string
+  - `domainmap`: path string
+  - `runtime`: path string
+
+## Notes
+- Optional gates default to `disabled` until user confirms.
+- Risk level drives recommended optional gates.
+- If `git_policy.enabled=true`, commits must include summary, role, phase, and change reason.

.agents/skills/tgassist/references/session_yaml_schema.md

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+# session.yaml Schema (tgassist)
+
+## Fields
+
+- `schema.name`:
+  - Value: `tgassist.session`
+
+- `schema.version`:
+  - Value: `0.1`
+
+- `status.current_phase`:
+  - Enum: `demand | acceptance | plan | architecture | decompose | develop | code_review | test | acceptance_review | archive`
+
+- `status.current_round`:
+  - Integer (>= 1)
+
+- `status.state`:
+  - Enum: `in_progress | awaiting_answers | finalized`
+
+- `status.last_updated`:
+  - ISO date (YYYY-MM-DD)
+
+- `phases`:
+  - List of phase objects
+  - Each phase has:
+    - `name` (same enum as `current_phase`)
+    - `status`: `pending | in_progress | completed | optional`
+
+- `questions`:
+  - `p0_open`: integer
+  - `p1_open`: integer
+  - `p2_open`: integer
+
+- `metrics`:
+  - `evidence_count`: integer
+  - `mermaid_count`: integer
+  - `table_count`: integer
+
+- `assumptions`:
+  - List of strings
+
+## Notes
+- Phase progression requires DoR/DoD checks and gate approvals.
+- `state` becomes `awaiting_answers` when P0 questions remain.