Rename doc-* mise tasks to docs-check-* / docs-review-* (#113)

## Summary
- Rename 4 automated-check tasks: `doc-titles` → `docs-check-titles`, `doc-filenames` → `docs-check-filenames`, `doc-links` → `docs-check-links`, `doc-index` → `docs-check-index`
- Rename 3 interactive-review tasks: `doc-random` → `docs-review-random`, `doc-tags` → `docs-review-tags`, `doc-stale` → `docs-review-stale`
- Update all references in `.pre-commit-config.yaml`, `ai-assistance-guide.md`, and `review-documentation.md`
- Historical changelog entries left as-is

## Test plan
- [x] `mise run docs-check-titles` exits 0
- [x] `mise run docs-check-links` exits 0
- [x] `mise run docs-review-tags` exits 0
- [x] `mise run doc-titles` fails with "no task found"
- [x] All pre-commit hooks pass (including renamed hook IDs)

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

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/113

.pre-commit-config.yaml

@@ -92,27 +92,27 @@ repos:
   # Documentation validation
   - repo: local
     hooks:
-      - id: doc-titles
-        name: doc-titles
-        entry: mise run doc-titles
+      - id: docs-check-titles
+        name: docs-check-titles
+        entry: mise run docs-check-titles
         language: system
         files: ^docs/.*\.md$
         pass_filenames: false
-      - id: doc-filenames
-        name: doc-filenames
-        entry: mise run doc-filenames
+      - id: docs-check-filenames
+        name: docs-check-filenames
+        entry: mise run docs-check-filenames
         language: system
         files: ^docs/.*\.md$
         pass_filenames: false
-      - id: doc-links
-        name: doc-links
-        entry: mise run doc-links
+      - id: docs-check-links
+        name: docs-check-links
+        entry: mise run docs-check-links
         language: system
         files: ^docs/.*\.md$
         pass_filenames: false
-      - id: doc-index
-        name: doc-index
-        entry: mise run doc-index
+      - id: docs-check-index
+        name: docs-check-index
+        entry: mise run docs-check-index
         language: system
         files: ^docs/.*\.md$
         pass_filenames: false