Add Submit to Antigravity or Codex for Development modal with model picker and deep links

server/index.js

@@ -19,8 +19,11 @@ import {
 } from "./nano_banana.js";
 import {
   DEFAULT_USER_BACKGROUND,
+  DEV_HANDOFF_TARGETS,
   generatePersonalizedRandomIdea,
-  generateNameSuggestions
+  generateNameSuggestions,
+  buildDevelopmentSpecMarkdown,
+  executeDevelopmentHandoff
 } from "./idea_generator.js";
 
 const __filename = fileURLToPath(import.meta.url);
@@ -257,6 +260,103 @@ export function createAppServer({
         return sendJson(res, 200, result);
       }
 
+      // 3c. GET /api/ideas/:id/spec.md (Download / Fetch Compiled Development Spec)
+      const specMdMatch = pathname.match(/^\/api\/ideas\/(\d+)\/spec\.md$/);
+      if (method === "GET" && specMdMatch) {
+        const id = Number(specMdMatch[1]);
+        const idea = store.getIdea(id);
+        if (!idea) return sendJson(res, 404, { error: "Idea not found" });
+
+        const targetApp = parsedUrl.searchParams.get("target") || "antigravity";
+        const model = parsedUrl.searchParams.get("model") || "";
+        const includeHomelab = parsedUrl.searchParams.get("includeHomelab") !== "false";
+        const userBackground =
+          store.getSetting("user_background", DEFAULT_USER_BACKGROUND) || DEFAULT_USER_BACKGROUND;
+        const host = req.headers.host || "sparkvault.vloser.us";
+        const proto = req.headers["x-forwarded-proto"] || "https";
+        const publicBaseUrl = `${proto}://${host}`;
+
+        const md = buildDevelopmentSpecMarkdown({
+          idea,
+          targetApp,
+          model,
+          includeHomelab,
+          publicBaseUrl,
+          userBackground
+        });
+
+        res.writeHead(200, {
+          "Content-Type": "text/markdown; charset=utf-8",
+          "Content-Disposition": `attachment; filename="spark-${idea.id}-spec.md"`
+        });
+        res.end(md);
+        return;
+      }
+
+      // 3d. POST /api/ideas/:id/dev-handoff (Submit Idea to Antigravity or Codex for Development)
+      const devHandoffMatch = pathname.match(/^\/api\/ideas\/(\d+)\/dev-handoff$/);
+      if (method === "POST" && devHandoffMatch) {
+        const id = Number(devHandoffMatch[1]);
+        const idea = store.getIdea(id);
+        if (!idea) return sendJson(res, 404, { error: "Idea not found" });
+
+        const body = await readJsonBody(req);
+        const targetApp = body.targetApp === "codex" ? "codex" : "antigravity";
+        const model = String(body.model || "").trim();
+        const customPrompt = String(body.customPrompt || "").trim();
+        const extraInstructions = String(body.extraInstructions || "").trim();
+        const includeHomelab = body.includeHomelab !== false;
+        const moveStatusToBuilding = body.moveStatusToBuilding !== false;
+        const executeServerCodex = Boolean(body.executeServerCodex);
+
+        const userBackground =
+          store.getSetting("user_background", DEFAULT_USER_BACKGROUND) || DEFAULT_USER_BACKGROUND;
+        const host = req.headers.host || "sparkvault.vloser.us";
+        const proto = req.headers["x-forwarded-proto"] || "https";
+        const publicBaseUrl = `${proto}://${host}`;
+        const workspacesRootDir = path.join(path.dirname(mockupsDir), "dev_workspaces");
+
+        const handoff = await executeDevelopmentHandoff({
+          idea,
+          targetApp,
+          model,
+          customPrompt,
+          includeHomelab,
+          extraInstructions,
+          executeServerCodex,
+          publicBaseUrl,
+          userBackground,
+          workspacesRootDir
+        });
+
+        // Record the handoff on the Spark and optionally move to "building"
+        const handoffAttachment = {
+          id: `dev-${Date.now()}`,
+          type: "note",
+          title: `🚀 Submitted to ${handoff.targetLabel} (${handoff.model})`,
+          textContent: handoff.codexExecution?.output
+            ? `Submitted to ${handoff.targetLabel} using model ${handoff.model}.\n\n--- CODEX IMPLEMENTATION PLAN ---\n${handoff.codexExecution.output}`
+            : `Submitted full Spark specification to ${handoff.targetLabel} using model \`${handoff.model}\`.`,
+          sourceUrl: handoff.specUrl,
+          imageUrl: "",
+          createdAt: handoff.submittedAt
+        };
+
+        const patch = {
+          attachments: [handoffAttachment, ...(idea.attachments || [])]
+        };
+        if (moveStatusToBuilding && (idea.status === "spark" || idea.status === "exploring")) {
+          patch.status = "building";
+        }
+        const updatedIdea = store.updateIdea(id, patch);
+
+        return sendJson(res, 200, {
+          idea: updatedIdea,
+          handoff,
+          devTargets: DEV_HANDOFF_TARGETS
+        });
+      }
+
       // 4. GET /api/whack-cards
       if (method === "GET" && pathname === "/api/whack-cards") {
         const allIdeas = store.listIdeas({});