Add registry improvements, tag filtering, and admin tools

Registry API improvements:
- Add /api/v1/me POST endpoint for profile updates
- Add /api/v1/me/password POST endpoint for password changes
- Fix visibility filtering on categories and tags endpoints to only
  show approved public tools
- Allow underscores in tool names for fabric pattern compatibility
- Fix sqlite3.Row access (use bracket notation instead of .get())

Web UI improvements:
- Add tag filter to /tools page with three-state buttons
  (include/exclude/neutral)
- Add mobile-friendly tag filter in responsive view
- Display tags on tool cards in the tools listing
- Add dashboard settings form handlers for profile and password

Admin improvements:
- Add scrutiny audit page for reviewing tool safety analysis
- Improve pending tools page with scrutiny report display
- Add scrutiny stats to admin dashboard

Fabric sync improvements:
- Add direct database publishing with scrutiny vetting
- Support auto-approve for tools passing scrutiny
- Improve error handling and logging
- Add source attribution for imported tools

Co-Authored-By: Claude Opus 4.5 <[email protected]>

scripts/validate_tool.py

@@ -13,7 +13,7 @@ from typing import List
 
 import yaml
 
-TOOL_NAME_RE = re.compile(r"^[A-Za-z0-9-]{1,64}$")
+TOOL_NAME_RE = re.compile(r"^[A-Za-z0-9_-]{1,64}$")
 SEMVER_RE = re.compile(r"^(\d+)\.(\d+)\.(\d+)(?:-[0-9A-Za-z.-]+)?(?:\+.+)?$")
 
 REQUIRED_README_SECTIONS = ["## Usage", "## Examples"]