Improve cleanup plan summary

[chubes4]

Summary

• Adds an upfront cleanup plan report with total reclaimable bytes by category, top reclaimable paths, blockers grouped by reason/repo, and recommended commands with destructive risk labels.
• Adds --top=<count> for controlling the largest-path summary and materializes stored cleanup run commands with the actual run ID.
• Covers the new CLI report shape and DB-backed command materialization in smoke tests.

Closes #679

Verification

• php -l inc/Workspace/WorkspaceCleanupPlan.php
• php -l inc/Workspace/CleanupRunService.php
• php -l inc/Cli/Commands/WorkspaceCommand.php
• php -l tests/smoke-worktree-cleanup-cli.php
• php -l tests/smoke-cleanup-run-storage.php
• php tests/smoke-worktree-cleanup-cli.php
• php tests/smoke-cleanup-run-storage.php
• php tests/smoke-worktree-cleanup-artifacts.php
• php tests/smoke-worktree-cleanup-plan-scope.php
• git diff --check

Known existing smoke failure

• php tests/smoke-worktree-cleanup.php currently fails on duplicate skipped-row expectations for dirty/external dry-run fixtures (152/161 passed). The failures reproduce independently of the new plan summary path; the targeted plan/CLI/storage/artifact checks above pass.

AI assistance

• AI assistance: Yes
• Tool(s): OpenCode (openai/gpt-5.5)
• Used for: Implemented the cleanup plan summary/report changes and drafted targeted smoke coverage; Chris remains responsible for review and merge.

[homeboy-ci]

Homeboy Results — data-machine-code

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
ℹ️ Save lint baseline: homeboy lint data-machine-code --baseline
Deep dive: homeboy lint data-machine-code --changed-since 8ce5ebc

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-lint-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-lint-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine-code/actions/runs/27470965111

Test

✅ test — passed

ℹ️ Auto-fix lint issues: homeboy refactor data-machine-code --from lint --write
ℹ️ Collect coverage: homeboy test data-machine-code --coverage
ℹ️ Save test baseline: homeboy test data-machine-code --baseline
ℹ️ Pass args to test runner: homeboy test -- [args]
ℹ️ Full options: homeboy docs commands/test
Deep dive: homeboy test data-machine-code --changed-since 8ce5ebc

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-test-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-test-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine-code/actions/runs/27470965111

Audit

✅ audit — passed

• audit — 257 finding(s)
• Total: 257 finding(s)

Deep dive: homeboy audit data-machine-code --changed-since 8ce5ebc

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-data-machine-code-audit-quality-Linux-node24 contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-data-machine-code-audit-quality-Linux-node24 contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/data-machine-code/actions/runs/27470965111

Tooling versions

• Homeboy CLI: homeboy 0.228.22+559e949
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: c555adf8
• Action: unknown@unknown