feat: generic project UI, branding fix, context/artifact separation

Web:
- Replace GitHub-specific import with generic public Git URL import
- Update project workspace page to use ProjectView shape (name, sources)
- Migrate use-project-workspace hook to importPublicGit action
- Fix status key needsInput → needs-input

Branding:
- Correct Zopo/zopo → Zopu/zopu in docs/PRODUCT.md, docs/DESIGN.md, docs/TECH.md

Artifacts:
- Cut to 8 operational artifacts (removed project/business/design.md)
- Update artifact seeds with generic context scaffolding

apps/web/src/hooks/use-project-workspace.ts

@@ -17,11 +17,12 @@ export const useProjectWorkspace = () => {
   const [issueBody, setIssueBody] = useState("");
   const [pendingAction, setPendingAction] = useState<string | null>(null);
   const [error, setError] = useState<string | null>(null);
-  const connectGitHub = useAction(api.projects.connectGitHub);
+  const importPublicGit = useAction(api.projects.importPublicGit);
   const createIssue = useMutation(api.projectIssues.create);
   const beginIssue = useMutation(api.projectIssues.begin);
   const markDispatchFailed = useMutation(api.projectIssues.markDispatchFailed);
-  const activeProjectId = selectedProjectId ?? projects?.[0]?._id ?? null;
+  const activeProjectId =
+    (selectedProjectId ?? (projects?.[0]?.id as unknown as Id<"projects">)) ?? null;
   const artifacts = useQuery(
     api.projectArtifacts.list,
     activeProjectId ? { projectId: activeProjectId } : "skip"
@@ -35,8 +36,8 @@ export const useProjectWorkspace = () => {
     setPendingAction("connect");
     setError(null);
     try {
-      const projectId = await connectGitHub({ repository });
-      setSelectedProjectId(projectId);
+      const outcome = await importPublicGit({ repositoryUrl: repository });
+      setSelectedProjectId(outcome.id as unknown as Id<"projects">);
       setRepository("");
     } catch (caughtError) {
       setError(errorMessage(caughtError));
@@ -87,9 +88,8 @@ export const useProjectWorkspace = () => {
       setPendingAction(null);
     }
   };
-
   const selectedProject =
-    projects?.find((project) => project._id === activeProjectId) ?? null;
+    projects?.find((project) => project.id === (activeProjectId as unknown as string)) ?? null;
 
   return {
     artifacts,