Revert "PHP Rebuild"

This reverts commit 2ef3654841.

src/lib/db/prisma.ts

@@ -0,0 +1,44 @@
+import { PrismaClient } from "@/generated/prisma/client";
+import { PrismaMariaDb } from "@prisma/adapter-mariadb";
+import { buildMysqlPoolConfig } from "./mysql-pool-config";
+
+/**
+ * Single Prisma Client instance for the whole app.
+ *
+ * Prisma 7 requires a driver adapter instead of a `datasource.url` in the
+ * schema (see prisma/schema.prisma). This is the ONLY file that imports a
+ * database driver directly — every other file goes through `prisma`.
+ *
+ * Migrated from PostgreSQL (`@prisma/adapter-pg`) to MySQL in Phase 7 — see
+ * docs/phase-7-summary.md for the full record. `@prisma/adapter-mariadb` is
+ * Prisma's one official driver adapter for BOTH MySQL and MariaDB (there is
+ * no separate "adapter-mysql" package): the underlying `mariadb` npm driver
+ * speaks the MySQL wire protocol and is Prisma's documented, supported way
+ * to connect to a genuine MySQL server. The package name is not a sign
+ * we're accidentally targeting MariaDB — `datasource.provider` in
+ * schema.prisma is `"mysql"`, and every environment this app runs against
+ * (local Docker, CI, and the documented production target) is real MySQL.
+ *
+ * See mysql-pool-config.ts for why the pool is built from a parsed object
+ * rather than passed the raw connection string — the short version is that
+ * the UTC-timezone handling it sets is load-bearing, not cosmetic.
+ */
+
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClient | undefined;
+};
+
+const adapter = new PrismaMariaDb(buildMysqlPoolConfig());
+
+export const prisma =
+  globalForPrisma.prisma ??
+  new PrismaClient({
+    adapter,
+    log: process.env.NODE_ENV === "development" ? ["warn", "error"] : ["error"],
+  });
+
+// Reuse the client across hot-reloads in dev so we don't exhaust the
+// connection pool every time a file changes.
+if (process.env.NODE_ENV !== "production") {
+  globalForPrisma.prisma = prisma;
+}