Unify derived-state rebuild commands

[willwashburn]

Closes#153\n\n## Summary\n- replace the top-level archive command with rebuild targets for index, classify, content, archive, all, and status\n- add unified derived-state status output covering index, content, classifier, and archive state\n- update docs, changelog, and tests for the target-based command shape\n\n## Tests\n- pnpm run build\n- node --test --test-reporter=spec packages/cli/dist/commands/archive.test.js packages/cli/dist/commands/waste.test.js packages/cli/dist/ingest.test.js packages/cli/dist/commands/ingest.test.js\n- pnpm run test

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 4 additional findings.