Merge: Restore root-level structure + add skills/docs/codebases

- Restored original root-level src/, package.json, etc.
- Added skills/ directory with Claude Code skills
- Added original-docs/ with source documentation
- Added codebases/z-ai-tooling/ as reference codebase
- Updated README.md with complete documentation

Total: Combined 82 original files + new skills structure

codebases/z-ai-tooling/prisma/schema.prisma

@@ -0,0 +1,32 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+// Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
+// Try Prisma Accelerate: https://pris.ly/cli/accelerate-init
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "sqlite"
+  url      = env("DATABASE_URL")
+}
+
+model User {
+  id        String   @id @default(cuid())
+  email     String   @unique
+  name      String?
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+}
+
+model Post {
+  id        String   @id @default(cuid())
+  title     String
+  content   String?
+  published Boolean  @default(false)
+  authorId  String
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+}