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

components/project-main/MvpSetupDescribeView.tsx

@@ -0,0 +1,129 @@
+"use client";
+
+import { Suspense, useCallback, useEffect, useState } from "react";
+import { JM, JV } from "@/components/project-creation/modal-theme";
+import { AtlasChat } from "@/components/AtlasChat";
+import {
+  BuildLivePlanPanel,
+  addSectionContextRef,
+} from "@/components/project-main/BuildLivePlanPanel";
+import {
+  type ChatContextRef,
+  contextRefKey,
+} from "@/lib/chat-context-refs";
+
+export function MvpSetupDescribeView({ projectId, workspace }: { projectId: string; workspace: string }) {
+  const [chatContextRefs, setChatContextRefs] = useState<ChatContextRef[]>([]);
+  const [tab, setTab] = useState<"chat" | "plan">("chat");
+  const [narrow, setNarrow] = useState(false);
+
+  useEffect(() => {
+    const mq = window.matchMedia("(max-width: 900px)");
+    const apply = () => setNarrow(mq.matches);
+    apply();
+    mq.addEventListener("change", apply);
+    return () => mq.removeEventListener("change", apply);
+  }, []);
+
+  const removeChatContextRef = useCallback((key: string) => {
+    setChatContextRefs(prev => prev.filter(r => contextRefKey(r) !== key));
+  }, []);
+
+  const addPlanSectionToChat = useCallback((label: string, phaseId: string | null) => {
+    setChatContextRefs(prev => addSectionContextRef(prev, label, phaseId));
+  }, []);
+
+  return (
+    <div style={{ flex: 1, display: "flex", flexDirection: "column", minHeight: 0, background: JV.chatColumnBg }}>
+      <div
+        style={{
+          padding: "18px 28px 14px",
+          background: "#fff",
+          borderBottom: `1px solid ${JM.border}`,
+          flexShrink: 0,
+        }}
+      >
+        <div style={{ fontSize: 17, fontWeight: 700, color: JM.ink, marginBottom: 3, fontFamily: JM.fontDisplay }}>
+          Describe
+        </div>
+        <div style={{ fontSize: 12.5, color: JM.muted }}>
+          Tell Vibn about your idea — your plan fills in on the right as you go.
+        </div>
+      </div>
+
+      {narrow && (
+        <div
+          style={{
+            display: "flex",
+            borderBottom: `1px solid ${JM.border}`,
+            background: "#EEF0FF",
+            flexShrink: 0,
+          }}
+        >
+          {(["chat", "plan"] as const).map(id => (
+            <button
+              key={id}
+              type="button"
+              onClick={() => setTab(id)}
+              style={{
+                flex: 1,
+                padding: "11px 8px",
+                border: "none",
+                background: "transparent",
+                fontSize: 13,
+                fontWeight: tab === id ? 600 : 500,
+                color: tab === id ? JM.indigo : JM.muted,
+                borderBottom: tab === id ? `2px solid ${JM.indigo}` : "2px solid transparent",
+                cursor: "pointer",
+                fontFamily: JM.fontSans,
+              }}
+            >
+              {id === "chat" ? "Chat" : "Your plan"}
+            </button>
+          ))}
+        </div>
+      )}
+
+      <div style={{ flex: 1, display: "flex", minHeight: 0, overflow: "hidden" }}>
+        <div
+          style={{
+            flex: 1,
+            minWidth: 0,
+            display: narrow && tab !== "chat" ? "none" : "flex",
+            flexDirection: "column",
+          }}
+        >
+          <AtlasChat
+            projectId={projectId}
+            conversationScope="overview"
+            contextEmptyLabel="Plan"
+            emptyStateHint="Answer Vibn’s questions — each phase you complete updates your plan."
+            chatContextRefs={chatContextRefs}
+            onRemoveChatContextRef={removeChatContextRef}
+          />
+        </div>
+        <div
+          style={{
+            width: narrow ? undefined : 308,
+            flex: narrow && tab === "plan" ? 1 : undefined,
+            flexShrink: 0,
+            minWidth: 0,
+            display: narrow && tab !== "plan" ? "none" : "flex",
+            flexDirection: "column",
+            overflow: "hidden",
+          }}
+        >
+          <Suspense fallback={<div style={{ flex: 1, background: JV.prdPanelBg }} />}>
+            <BuildLivePlanPanel
+              projectId={projectId}
+              workspace={workspace}
+              chatContextRefs={chatContextRefs}
+              onAddSectionRef={addPlanSectionToChat}
+              compactHeader={narrow}
+            />
+          </Suspense>
+        </div>
+      </div>
+    </div>
+  );
+}