Rip out Theia, ship P5.1 attach E2E + Justine UI work-in-progress

Theia rip-out:
- Delete app/api/theia-auth/route.ts (Traefik ForwardAuth shim)
- Delete app/api/projects/[projectId]/workspace/route.ts and
  app/api/projects/prewarm/route.ts (Cloud Run Theia provisioning)
- Delete lib/cloud-run-workspace.ts and lib/coolify-workspace.ts
- Strip provisionTheiaWorkspace + theiaWorkspaceUrl/theiaAppUuid/
  theiaError from app/api/projects/create/route.ts response
- Remove Theia callbackUrl branch in app/auth/page.tsx
- Drop "Open in Theia" button + xterm/Theia PTY copy in build/page.tsx
- Drop theiaWorkspaceUrl from deployment/page.tsx Project type
- Strip Theia IDE line + theia-code-os from advisor + agent-chat
  context strings
- Scrub Theia mention from lib/auth/workspace-auth.ts comment

P5.1 (custom apex domains + DNS):
- lib/coolify.ts + lib/opensrs.ts: nameserver normalization, OpenSRS
  XML auth, Cloud DNS plumbing
- scripts/smoke-attach-e2e.ts: full prod GCP + sandbox OpenSRS +
  prod Coolify smoke covering register/zone/A/NS/PATCH/cleanup

In-progress (Justine onboarding/build, MVP setup, agent telemetry):
- New (justine)/stories, project (home) layouts, mvp-setup, run, tasks
  routes + supporting components
- Project shell + sidebar + nav refactor for the Stackless palette
- Agent session API hardening (sessions, events, stream, approve,
  retry, stop) + atlas-chat, advisor, design-surfaces refresh
- New scripts/sync-db-url-from-coolify.mjs +
  scripts/prisma-db-push.mjs + docker-compose.local-db.yml for
  local Prisma workflows
- lib/dev-bypass.ts, lib/chat-context-refs.ts, lib/prd-sections.ts
- Misc: stories CSS, debug/prisma route, modal-theme, BuildLivePlanPanel

Made-with: Cursor

lib/chat-context-refs.ts

@@ -0,0 +1,49 @@
+/**
+ * References attached from the overview sidebar so the user can point Vibn at a
+ * PRD section or discovery phase. Sent with chat; not shown in stored user text.
+ */
+export type ChatContextRef =
+  | { kind: "section"; label: string; phaseId: string | null }
+  | { kind: "phase"; label: string; phaseId: string }
+  | { kind: "app"; label: string; path: string };
+
+export function contextRefKey(r: ChatContextRef): string {
+  if (r.kind === "section") return `s:${r.label}`;
+  if (r.kind === "phase") return `p:${r.phaseId}`;
+  return `a:${r.path}`;
+}
+
+export function augmentAtlasMessage(
+  message: string,
+  refs: ChatContextRef[] | null | undefined
+): string {
+  const list = refs?.filter(Boolean) ?? [];
+  if (!list.length) return message;
+  const lines = list.map(r =>
+    r.kind === "section"
+      ? `- PRD section: "${r.label}"${r.phaseId ? ` (discovery phase: ${r.phaseId})` : ""}`
+      : r.kind === "phase"
+        ? `- Discovery phase: "${r.label}" (id: ${r.phaseId})`
+        : `- Monorepo workspace / package: "${r.label}" (path: ${r.path})`
+  );
+  return `[The user attached these project references for this message. Prioritize them in your reply:\n${lines.join("\n")}\n]\n\n${message}`;
+}
+
+export function parseContextRefs(raw: unknown): ChatContextRef[] {
+  if (!Array.isArray(raw)) return [];
+  const out: ChatContextRef[] = [];
+  for (const item of raw) {
+    if (!item || typeof item !== "object") continue;
+    const o = item as Record<string, unknown>;
+    if (o.kind === "section" && typeof o.label === "string") {
+      const phaseId: string | null =
+        o.phaseId === null ? null : typeof o.phaseId === "string" ? o.phaseId : null;
+      out.push({ kind: "section", label: o.label, phaseId });
+    } else if (o.kind === "phase" && typeof o.label === "string" && typeof o.phaseId === "string") {
+      out.push({ kind: "phase", label: o.label, phaseId: o.phaseId });
+    } else if (o.kind === "app" && typeof o.label === "string" && typeof o.path === "string") {
+      out.push({ kind: "app", label: o.label, path: o.path });
+    }
+  }
+  return out;
+}