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

packages/workspaces/src/feature.manifest.ts

@@ -13,8 +13,15 @@ import { defineFeature } from "@repo/core-shared/conformance";
  */
 export const workspacesManifest = defineFeature({
   name: "workspaces",
-  requiredCores: [],
+  requiredCores: ["audit"],
   useCases: {
+    connectWorkspace: {
+      mutates: true,
+      audits: ["workspace-connected"],
+      publishes: [],
+      consumes: [],
+      analyticsEvents: [],
+    },
     getWorkspace: {
       mutates: false,
       audits: [],