Convert wiki-links to title-based format (#89)

## Summary
- Add `doc-card-titles` mise task to enumerate all doc cards by title/id and detect duplicates
- Remove redundant aliases from zk cards where alias matched the id
- Rename `reference/storage/postgresql.md` title to "PostgreSQL Storage" to avoid duplicate with `reference/services/postgresql.md`
- Convert all 175 path-based wiki-links `[[reference/path|Title]]` to title-based `[[Title]]` format
- Add pre-commit hook to check for duplicate card titles on doc changes

## Deployment and Testing
- [x] Pre-commit hooks pass
- [x] `mise run doc-card-titles` shows no duplicates
- [ ] Verify wiki-links work correctly in Quartz build

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/89

docs/changelog.d/wiki-link-titles.doc.md

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+Convert wiki-links to title-based format and add duplicate title detection