fix(test): use valid URI format for plan handle IDs

- Update plan handle ID format to match TimeSafari specification
  - Default format: https://endorser.ch/entity/{26-char-ULID}
  - ULID: 26 characters, Crockford base32 encoded
  - Validates RFC 3986 URI format

- Add ULID generation functions
  - generateULID() creates 26-character Crockford base32 strings
  - generateValidPlanHandleId() creates full URI format IDs
  - Auto-generates valid IDs for testing

- Update DEFAULT_TEST_PROJECT_IDS
  - Now generates valid URI format IDs automatically
  - Removes placeholder warnings (IDs are now valid format)

- Add URI validation to seed scripts
  - Validates plan IDs match RFC 3986 URI format
  - Error messages with format examples
  - Blocks seeding with invalid formats

- Update test-user-zero.ts config
  - Auto-generates valid URI format plan IDs
  - Clear documentation of required format
  - Note that real IDs from database should replace test IDs

- Update documentation
  - Document default URI format specification
  - Explain ULID structure and encoding
  - Show examples of valid formats

This ensures all test project IDs match the actual TimeSafari plan
handle ID format, preventing validation errors during prefetch testing.

test-apps/daily-notification-test/src/config/test-user-zero.ts

@@ -81,27 +81,37 @@ export const TEST_USER_ZERO_CONFIG = {
 
   // Test Starred Projects (mock data for testing)
   starredProjects: {
-    // IMPORTANT: Replace these with valid plan handle IDs from your TimeSafari database
+    // IMPORTANT: Plan handle IDs must be valid URIs (RFC 3986 format)
     // 
+    // Default format: https://endorser.ch/entity/{26-char-ULID}
+    // - ULID is 26 characters, Crockford base32 (e.g., 01GQBE7Q0RQQAGJMEEW6RSGKTF)
+    // - Any valid URI scheme is accepted: http://, https://, did:, etc.
+    //
     // To get valid plan IDs:
-    // 1. Create projects in TimeSafari app and note their handleId from API responses
+    // 1. Create projects in TimeSafari app and note handleId from API responses
     // 2. Query your local database: SELECT handleId FROM plans LIMIT 5
-    // 3. Check starred projects in account settings: settings.starredPlanHandleIds
+    // 3. Check starred projects: settings.starredPlanHandleIds
     // 4. See docs/getting-valid-plan-ids.md for detailed instructions
     //
-    // Plan handle IDs can be:
-    // - UUIDs: "550e8400-e29b-41d4-a716-446655440000"
-    // - Hashes: "abc123def456789"
-    // - Or any format your TimeSafari backend uses
-    //
-    // For localhost testing with no projects, you can:
-    // - Use the test API server: node scripts/test-api-server-with-seed.js
-    // - Or create test projects first, then use their IDs here
-    planIds: [
-      "PLACEHOLDER_ID_1",  // Replace with real plan handle ID
-      "PLACEHOLDER_ID_2",  // Replace with real plan handle ID
-      "PLACEHOLDER_ID_3"   // Replace with real plan handle ID
-    ],
+    // These are auto-generated valid URIs for testing structure.
+    // Replace with real IDs from your TimeSafari database for actual testing.
+    planIds: ((): string[] => {
+      // Generate valid URI format IDs for testing
+      const generateULID = (): string => {
+        const alphabet = '0123456789ABCDEFGHJKMNPQRSTVWXYZ';
+        const timestamp = Date.now().toString(36).toUpperCase().padStart(10, '0');
+        const random = Array.from({ length: 16 }, () => 
+          alphabet[Math.floor(Math.random() * alphabet.length)]
+        ).join('');
+        return (timestamp + random).substring(0, 26);
+      };
+      
+      return [
+        `https://endorser.ch/entity/${generateULID()}`,
+        `https://endorser.ch/entity/${generateULID()}`,
+        `https://endorser.ch/entity/${generateULID()}`
+      ];
+    })(),
     
     // Last acknowledged JWT ID (for pagination testing)
     lastAckedJwtId: "1704067200_abc123_def45678"