feat(workspaces): connectWorkspace use case with audit

Manifest-first: connectWorkspace declared mutates:true with the
workspace-connected audit event, requiredCores gains audit. Workspace
entity gains gitUrl + persisted status enum (created/connecting/ready/
error). Input takes name + git URL + PAT; the output schema is the
credential-free workspace entity, so the PAT can never round-trip.
Audit emission asserted with RecordingAuditLog; binders wire the use
case through wireUseCase with the __audited brand, and web-next
bindAll now binds core-audit (payload+stdout sinks in production,
stdout in dev-seed) so boot conformance passes in both modes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

pnpm-lock.yaml

@@ -179,6 +179,9 @@ importers:
       "@repo/core-api":
         specifier: workspace:*
         version: link:../../packages/core-api
+      "@repo/core-audit":
+        specifier: workspace:*
+        version: link:../../packages/core-audit
       "@repo/core-cms":
         specifier: workspace:*
         version: link:../../packages/core-cms