fix(260607-l6l): add missing innerJoin to PATCH+DELETE event lookups

BUG 1: PATCH /:uid/edit and DELETE /:uid selected calendars.url/userId
from .from(calendarEvents) with no join, causing Drizzle to throw at
toSQL() time → 503. Added .innerJoin(calendars, ...) to both lookups,
mirroring the working GET / join idiom.

- Updated PATCH + DELETE beforeEach mocks to route through innerJoin→where
- Updated CR-01 PATCH test mock similarly
- Added regression: edit/delete lookups join calendars describe block with
  toSQL() assertions using vi.importActual (real drizzle, no DB needed)
- All 21 tests pass; typecheck clean

apps/api/src/routes/events.ts

@@ -290,8 +290,9 @@ eventsRouter.patch('/:uid/edit', zValidator('json', eventFieldsSchema), async (c
 
   try {
     // --- Look up the event and verify ownership ---
-    // We look up calendarEvents joined to calendars via a where condition on calendarId.
-    // The calendar's userId must match the current user (or be shared).
+    // Join calendarEvents → calendars so we can read calendars.url and calendars.userId
+    // in the same query. Without the join, referencing calendars.* produces invalid SQL
+    // (Drizzle throws at toSQL() time) → 503. Mirrors the GET / join idiom at line 153.
     const [eventRow] = await db
       .select({
         uid: calendarEvents.uid,
@@ -302,6 +303,7 @@ eventsRouter.patch('/:uid/edit', zValidator('json', eventFieldsSchema), async (c
         userId: calendars.userId,
       })
       .from(calendarEvents)
+      .innerJoin(calendars, eq(calendarEvents.calendarId, calendars.id))
       .where(eq(calendarEvents.uid, uid))
 
     if (!eventRow) {
@@ -388,7 +390,9 @@ eventsRouter.delete('/:uid', async (c) => {
   const uid = c.req.param('uid')
 
   try {
-    // Look up the event
+    // Look up the event — join calendars so calendars.url / calendars.userId are accessible.
+    // Same innerJoin idiom as the GET / handler (line 153). Without this join, Drizzle
+    // throws at toSQL() time → 503.
     const [eventRow] = await db
       .select({
         uid: calendarEvents.uid,
@@ -399,6 +403,7 @@ eventsRouter.delete('/:uid', async (c) => {
         userId: calendars.userId,
       })
       .from(calendarEvents)
+      .innerJoin(calendars, eq(calendarEvents.calendarId, calendars.id))
       .where(eq(calendarEvents.uid, uid))
 
     if (!eventRow) {