fix: seed script fails due to missing content field

The seed script fetches from /prompts.json without the ?full_content=true
parameter. The API only returns contentPreview by default, so the content
field is undefined, causing PrismaClientValidationError for every prompt.

Changes:
- Add ?full_content=true to the fetch URL
- Make content optional in RemotePrompt interface
- Skip prompts without content instead of failing

Before: Created 0 prompts (1595 skipped) with validation errors
After: Created 1576 prompts (19 skipped - no content)

prisma/seed.ts

@@ -3,14 +3,15 @@ import bcrypt from "bcryptjs";
 
 const prisma = new PrismaClient();
 
-const PROMPTS_JSON_URL = "https://prompts.chat/prompts.json";
+const PROMPTS_JSON_URL = "https://prompts.chat/prompts.json?full_content=true";
 
-interface RemotePrompt {
+/** Raw shape returned by the remote API — content may be absent. */
+interface RemotePromptRaw {
   id: string;
   title: string;
   slug: string;
   description: string | null;
-  content: string;
+  content?: string;
   type: string;
   structuredFormat: string | null;
   mediaUrl: string | null;
@@ -52,11 +53,20 @@ interface RemotePrompt {
   }>;
 }
 
-interface RemotePromptsResponse {
-  count: number;
-  prompts: RemotePrompt[];
+/** Validated prompt with required content field. */
+type RemotePrompt = RemotePromptRaw & { content: string };
+
+/** Type guard that narrows a raw API prompt to a validated RemotePrompt. */
+function hasContent(prompt: RemotePromptRaw): prompt is RemotePrompt {
+  return typeof prompt.content === "string" && prompt.content.length > 0;
 }
 
+interface RemotePromptsResponse {
+  count: number;
+  prompts: RemotePromptRaw[];
+}
+
+/** Fetches all prompts from the remote prompts.chat API with full content. */
 async function fetchPrompts(): Promise<RemotePromptsResponse> {
   console.log(`📡 Fetching prompts from ${PROMPTS_JSON_URL}...`);
   const response = await fetch(PROMPTS_JSON_URL);
@@ -68,12 +78,13 @@ async function fetchPrompts(): Promise<RemotePromptsResponse> {
   return data;
 }
 
+/** Seeds the database with users, categories, tags, and prompts from prompts.chat. */
 async function main() {
   console.log("🌱 Seeding database from prompts.chat...");
 
   // Create admin user for assigning prompts
   const password = await bcrypt.hash("password123", 12);
-  
+
   const admin = await prisma.user.upsert({
     where: { email: "admin@prompts.chat" },
     update: {},
@@ -174,7 +185,7 @@ async function main() {
       userIdMap.set(username, admin.id);
       continue;
     }
-    
+
     const user = await prisma.user.upsert({
       where: { username },
       update: { name: author.name, avatar: author.avatar },
@@ -225,6 +236,13 @@ async function main() {
     };
     const structuredFormat = remotePrompt.structuredFormat ? formatMap[remotePrompt.structuredFormat] : null;
 
+    // Skip prompts without content
+    if (!hasContent(remotePrompt)) {
+      console.warn(`⚠  Skipping prompt "${remotePrompt.title}" - no content`);
+      promptsSkipped++;
+      continue;
+    }
+
     // Check if prompt already exists
     const existingPrompt = await prisma.prompt.findFirst({
       where: { slug: remotePrompt.slug },
@@ -280,6 +298,16 @@ async function main() {
   }
 
   console.log(`✅ Created ${promptsCreated} prompts (${promptsSkipped} skipped)`);
+
+  // Fail-fast if no prompts were created — likely an upstream API regression
+  const total = promptsCreated + promptsSkipped;
+  if (total > 0 && promptsCreated === 0) {
+    throw new Error(
+      `Seeding failed: 0 prompts created out of ${total} (${promptsSkipped} skipped). ` +
+      `This likely indicates an upstream API regression — check that ${PROMPTS_JSON_URL} returns content.`
+    );
+  }
+
   console.log("\n🎉 Seeding complete!");
   console.log("\n📋 Test credentials (password: password123):");
   console.log("   Admin: admin@prompts.chat");