Expand issue-flow workflow with additional slash commands

[jepegit]

Description

The current Init → Start → Close workflow is a great foundation. However, to reduce friction during complex tasks, context switching, and post-merge cleanup, we should introduce a more granular set of commands.

Proposed New Commands

1. /issue-plan

Role: Formalize the "thinking" phase before any code is touched.

• Logic: Move the planning steps currently in /issue-start into this dedicated command.
• Output: Generate an issue<N>_plan.md file and require explicit user confirmation before moving to implementation.

2. /issue-pause

Role: Safely park work to switch context.

• Logic:
  • Update the status file with "Remaining work".
  • Immediately move the issue group to .issueflows/02-partly-solved-issues/.
  • Suggest a WIP commit or switch the user back to the default branch (main/master).

3. /issue-cleanup

Role: Dedicated "janitor" for post-merge maintenance.

• Logic: * Extract the post-merge logic from /issue-close (Step 7).
  • Detect merged PRs via gh pr view.
  • Perform the "consolidated confirm" to delete local branches whose tips are reachable from the default branch.

4. /issue-yolo (or /issue-fast)

Role: An "all-in-one" command for minor bugfixes and documentation.

• Logic: Chained execution of init -> start -> implement -> close in a single flow.
• Safeguards: * Must abort if tests (e.g., uv run pytest) fail.
  • Refuse to run if the working tree is dirty with unrelated changes.
  • Single confirmation at the start before performing automated commit/push/PR.

Implementation Tasks

• Create Jinja2 templates for /issue-plan.md.j2.
• Create Jinja2 templates for /issue-pause.md.j2.
• Create Jinja2 templates for /issue-cleanup.md.j2.
• Create Jinja2 templates for /issue-yolo.md.j2.
• Update cursor-issue-workflow.md to reflect the expanded lifecycle.
• Update Agent Skills to include these new playbooks.

Expected End-to-End Flow

1. /issue-init: Capture.
2. /issue-plan: Define approach.
3. /issue-start: Execute implementation.
4. /issue-pause: (Optional) Park work.
5. /issue-close: Land work.
6. /issue-cleanup: Final branch/folder hygiene.