Implement Workstream F1: me.get and me.setupProfile procedures

- Add me.get procedure returning user profile with needsSetup flag
- Add me.setupProfile procedure for initial profile setup after signup
- Add nonEmptyString/optionalString schema helpers with tests
- Use Web Crypto API (SubtleCrypto) for Cloudflare Workers compatibility
- Use @formatjs/intl-durationformat for duration formatting
- Remove node:crypto dependency from crypto utilities

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api-server/src/router.ts

@@ -105,14 +105,50 @@ const verifyAuthentication = os.auth.webauthn.verifyAuthentication
   });
 
 // Me procedures
-const meGet = os.me.get.use(authMiddleware).handler(async () => {
-  throw new ORPCError("NOT_IMPLEMENTED", { message: "Not implemented" });
+const meGet = os.me.get.use(authMiddleware).handler(async ({ context }) => {
+  const user = await context.db
+    .selectFrom("users")
+    .select([
+      "id",
+      "email",
+      "display_name",
+      "full_name",
+      "phone_number",
+      "avatar_url",
+      "email_verified_at",
+      "is_superuser",
+    ])
+    .where("id", "=", context.user.id)
+    .executeTakeFirstOrThrow();
+
+  return {
+    id: user.id,
+    email: user.email,
+    displayName: user.display_name,
+    fullName: user.full_name,
+    phoneNumber: user.phone_number,
+    avatarUrl: user.avatar_url,
+    emailVerified: user.email_verified_at !== null,
+    needsSetup: user.display_name === null,
+    isSuperuser: user.is_superuser,
+  };
 });
 
 const setupProfile = os.me.setupProfile
   .use(authMiddleware)
-  .handler(async () => {
-    throw new ORPCError("NOT_IMPLEMENTED", { message: "Not implemented" });
+  .handler(async ({ input, context }) => {
+    const { displayName, fullName, phoneNumber } = input;
+
+    await context.db
+      .updateTable("users")
+      .set({
+        display_name: displayName,
+        full_name: fullName ?? null,
+        phone_number: phoneNumber ?? null,
+        updated_at: new Date(),
+      })
+      .where("id", "=", context.user.id)
+      .execute();
   });
 
 const updateProfile = os.me.updateProfile