chore: remove shipped warm-pi-provider-processes plan/spec docs

[glittercowboy]

Summary

• Plan + design spec for the bounded warm Pi provider workers feature merged in 9d273ce. Removing now that the work is shipped.

Test plan

• No code changes; docs only

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Removed internal specification and implementation planning documents to streamline the documentation repository.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 89c48b96-a40d-4811-83ad-23c5549ab1a9

📥 Commits

Reviewing files that changed from the base of the PR and between 30531cd and 57fba33.

📒 Files selected for processing (2)

• docs/superpowers/plans/2026-04-29-warm-pi-provider-processes.md
• docs/superpowers/specs/2026-04-29-warm-pi-provider-processes-design.md

💤 Files with no reviewable changes (2)

• docs/superpowers/specs/2026-04-29-warm-pi-provider-processes-design.md
• docs/superpowers/plans/2026-04-29-warm-pi-provider-processes.md

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📝 Walkthrough

Walkthrough

Two documentation files describing the warm Pi provider processes architecture and implementation plan are removed. The deleted content previously specified worker lifetime management, eviction policies, provider behaviors, and task execution flows for daemon systems. No code changes are included.

Changes

Documentation Removal

Layer / File(s)	Summary
Specification and Plan Documents docs/superpowers/specs/2026-04-29-warm-pi-provider-processes-design.md, docs/superpowers/plans/2026-04-29-warm-pi-provider-processes.md	Design specification and implementation plan for warm Pi/provider process lifetimes are fully deleted (2,506 lines removed total).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• Remove stale plan capability doc line #142: Also modifies warm Pi/provider process documentation, with overlapping references to worker identity key and plan-capability wording in the deleted files.

Poem

📜✨ A rabbit hops away with docs in tow,
Plans and specs take their final bow,
Warm processes fade to yesterday's snow,
Git records what was, though we let it go. 🌙

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'chore: remove shipped warm-pi-provider-processes plan/spec docs' directly and accurately describes the main change: removal of documentation for a completed feature.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/cleanup-warm-pi-docs

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