fix: audit fixes — metadata.json, stale profiles, canonical paths, validation

- Confirmed/created projman metadata.json with gitea mapping
- Synced profile JSONs to current version
- Added metadata.json validation to validate-marketplace.sh
- Updated CANONICAL-PATHS.md to current version
- Deprecated switch-profile.sh in favor of claude-launch.sh

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/switch-profile.sh

@@ -4,6 +4,8 @@
 
 set -euo pipefail
 
+echo "⚠️  DEPRECATED: use scripts/claude-launch.sh instead." >&2
+
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 ROOT_DIR="$(dirname "$SCRIPT_DIR")"
 MARKETPLACE_DIR="$ROOT_DIR/.claude-plugin"