Install Sepo agent infrastructure

[sepo-agent]

Summary

Installs Sepo agent infrastructure into CodeShaping/annotate-edit.

Installed files:

• Added .agent/ from self-evolving/repo release v0.3.0, excluding generated .agent/dist/ and .agent/node_modules/.
• Added Sepo-owned .github/ issue templates, actions, prompts, and workflows.
• Updated .gitignore to ignore regenerated Sepo bundle and dependency directories.

Preserved/skipped files:

• Target repository had no existing .github/ files, so no same-path target-owned GitHub files were overwritten.
• Preserved existing .gitignore entries and appended Sepo ignores idempotently.
• Did not add optional .skills/ files or root AGENT.md; none were requested.
• Did not add agent/memory or agent/rubrics; initialize them after merge if wanted.

Required setup after merge

1. Install the Sepo GitHub App on the target repository, or choose another supported auth path from the setup guide.
2. Add OPENAI_API_KEY, CLAUDE_CODE_OAUTH_TOKEN, and/or ANTHROPIC_API_KEY in Actions secrets.
3. Run Agent / Onboarding / Check Setup.
4. Review the Sepo setup check issue and complete remaining setup.
5. If needed, run Agent / Memory / Initialization to create agent/memory.
6. Optionally run Agent / Rubrics / Initialization to create agent/rubrics.

Source revision

• Source repository: self-evolving/repo
• Selected ref: v0.3.0
• Commit SHA: bec597687fdb1a1786e7127ee6ddd5ec088f36af
• Release: https://github.com/self-evolving/repo/releases/tag/v0.3.0
• Selection reason: latest non-draft stable release; no prerelease fallback was needed.

Validation details

• Resolved install target with resolve-install-target.js: CodeShaping/annotate-edit.
• Prepared fork worktree with install-fork-pr.js prepare: sepo-agent/annotate-edit, branch agent/install-agent-infra.
• Audited .github/ same-path files before copying; target had no .github/ tree.
• Verified .agent/dist/ and .agent/node_modules/ were not copied.
• Reviewed and committed install diff: 292 files changed, 51333 insertions(+), 1 deletion(-).
• Commit: bca3bed chore: install Sepo agent infrastructure.
• Working tree was clean after commit.

Skipped checks:

• Did not run target application tests or Sepo runtime checks before merge; this PR only copies install infrastructure and setup is completed after merge through the onboarding workflow.

Source install request: self-evolving/repo#360