feat: series-aware schedule edits + waitlist ledger removal (M32)

PATCH /v1/catalog/class-schedules/:id patches a recurring rule and,
with applyToFuture, retimes materialized future sessions to the new
local start time on their existing dates — moving confirmed and
waitlisted bookings with them and re-arming reminders. Zones-page
schedule rows gain an inline editor (CS/EN).

Also drops the vestigial waitlist_entries table (migration 00020):
positions derive from bookings.created_at, so the ledger was written
but never read.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

packages/api-client/src/generated/types.ts

@@ -429,7 +429,7 @@ export interface paths {
         delete: operations["deleteClassSchedule"];
         options?: never;
         head?: never;
-        patch?: never;
+        patch: operations["updateClassSchedule"];
         trace?: never;
     };
     "/v1/catalog/class-sessions": {
@@ -1912,6 +1912,16 @@ export interface components {
             primaryColor?: string;
             siteUrl?: string;
         };
+        /** @description Patches a recurring rule; absent fields are kept. locationId set to the empty string clears the location. When applyToFuture is true and time or location changed, already-materialized future sessions move to the new start time (keeping their local date) and location, and their live bookings follow. A dayOfWeek change only steers sessions materialized afterwards. */
+        UpdateClassScheduleRequest: {
+            active?: boolean;
+            applyToFuture?: boolean;
+            dayOfWeek?: number;
+            /** @description Location UUID, or empty string to clear */
+            locationId?: string;
+            /** @description Tenant-local start time, HH:MM */
+            startsLocal?: string;
+        };
         UpdateEmailTemplateRequest: {
             body?: string;
             isEnabled?: boolean;
@@ -2904,6 +2914,46 @@ export interface operations {
             };
         };
     };
+    updateClassSchedule: {
+        parameters: {
+            query?: never;
+            header?: never;
+            path: {
+                scheduleID: string;
+            };
+            cookie?: never;
+        };
+        requestBody: {
+            content: {
+                "application/json": components["schemas"]["UpdateClassScheduleRequest"];
+            };
+        };
+        responses: {
+            /** @description Updated class schedule */
+            200: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content: {
+                    "application/json": components["schemas"]["ClassSchedule"];
+                };
+            };
+            /** @description Invalid request */
+            400: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+            /** @description Class schedule not found */
+            404: {
+                headers: {
+                    [name: string]: unknown;
+                };
+                content?: never;
+            };
+        };
+    };
     listClassSessions: {
         parameters: {
             query?: never;