Adds resource scheduling and unavailability tracking

Introduces comprehensive schedule management for resources:
- Adds DateService with advanced time and date utilities
- Implements ResourceScheduleService for managing work hours
- Creates ScheduleRenderer to visualize unavailable time zones
- Extends resource model to support default weekly schedules

Enables granular tracking of resource availability and working hours

src/v2/storage/schedules/ResourceScheduleService.ts

@@ -0,0 +1,84 @@
+import { ITimeSlot } from '../../types/ScheduleTypes';
+import { ResourceService } from '../resources/ResourceService';
+import { ScheduleOverrideService } from './ScheduleOverrideService';
+import { DateService } from '../../core/DateService';
+
+/**
+ * ResourceScheduleService - Get effective schedule for a resource on a date
+ *
+ * Logic:
+ * 1. Check for override on this date
+ * 2. Fall back to default schedule for the weekday
+ */
+export class ResourceScheduleService {
+  constructor(
+    private resourceService: ResourceService,
+    private overrideService: ScheduleOverrideService,
+    private dateService: DateService
+  ) {}
+
+  /**
+   * Get effective schedule for a resource on a specific date
+   *
+   * @param resourceId - Resource ID
+   * @param date - Date string "YYYY-MM-DD"
+   * @returns ITimeSlot or null (fri/closed)
+   */
+  async getScheduleForDate(resourceId: string, date: string): Promise<ITimeSlot | null> {
+    // 1. Check for override
+    const override = await this.overrideService.getOverride(resourceId, date);
+    if (override) {
+      return override.schedule;
+    }
+
+    // 2. Use default schedule for weekday
+    const resource = await this.resourceService.get(resourceId);
+    if (!resource || !resource.defaultSchedule) {
+      return null;
+    }
+
+    const weekDay = this.dateService.getISOWeekDay(date);
+    return resource.defaultSchedule[weekDay] || null;
+  }
+
+  /**
+   * Get schedules for multiple dates
+   *
+   * @param resourceId - Resource ID
+   * @param dates - Array of date strings "YYYY-MM-DD"
+   * @returns Map of date -> ITimeSlot | null
+   */
+  async getSchedulesForDates(resourceId: string, dates: string[]): Promise<Map<string, ITimeSlot | null>> {
+    const result = new Map<string, ITimeSlot | null>();
+
+    // Get resource once
+    const resource = await this.resourceService.get(resourceId);
+
+    // Get all overrides in date range
+    const overrides = dates.length > 0
+      ? await this.overrideService.getByDateRange(resourceId, dates[0], dates[dates.length - 1])
+      : [];
+
+    // Build override map
+    const overrideMap = new Map(overrides.map(o => [o.date, o.schedule]));
+
+    // Resolve each date
+    for (const date of dates) {
+      // Check override first
+      if (overrideMap.has(date)) {
+        result.set(date, overrideMap.get(date)!);
+        continue;
+      }
+
+      // Fall back to default
+      if (resource?.defaultSchedule) {
+        const weekDay = this.dateService.getISOWeekDay(date);
+        result.set(date, resource.defaultSchedule[weekDay] || null);
+      } else {
+        result.set(date, null);
+      }
+    }
+
+    return result;
+  }
+}

src/v2/storage/schedules/ScheduleOverrideService.ts

@@ -0,0 +1,100 @@
+import { IScheduleOverride } from '../../types/ScheduleTypes';
+import { IndexedDBContext } from '../IndexedDBContext';
+import { ScheduleOverrideStore } from './ScheduleOverrideStore';
+
+/**
+ * ScheduleOverrideService - CRUD for schedule overrides
+ *
+ * Provides access to date-specific schedule overrides for resources.
+ */
+export class ScheduleOverrideService {
+  private context: IndexedDBContext;
+
+  constructor(context: IndexedDBContext) {
+    this.context = context;
+  }
+
+  private get db(): IDBDatabase {
+    return this.context.getDatabase();
+  }
+
+  /**
+   * Get override for a specific resource and date
+   */
+  async getOverride(resourceId: string, date: string): Promise<IScheduleOverride | null> {
+    return new Promise((resolve, reject) => {
+      const transaction = this.db.transaction([ScheduleOverrideStore.STORE_NAME], 'readonly');
+      const store = transaction.objectStore(ScheduleOverrideStore.STORE_NAME);
+      const index = store.index('resourceId_date');
+      const request = index.get([resourceId, date]);
+
+      request.onsuccess = () => {
+        resolve(request.result || null);
+      };
+
+      request.onerror = () => {
+        reject(new Error(`Failed to get override for ${resourceId} on ${date}: ${request.error}`));
+      };
+    });
+  }
+
+  /**
+   * Get all overrides for a resource
+   */
+  async getByResource(resourceId: string): Promise<IScheduleOverride[]> {
+    return new Promise((resolve, reject) => {
+      const transaction = this.db.transaction([ScheduleOverrideStore.STORE_NAME], 'readonly');
+      const store = transaction.objectStore(ScheduleOverrideStore.STORE_NAME);
+      const index = store.index('resourceId');
+      const request = index.getAll(resourceId);
+
+      request.onsuccess = () => {
+        resolve(request.result || []);
+      };
+
+      request.onerror = () => {
+        reject(new Error(`Failed to get overrides for ${resourceId}: ${request.error}`));
+      };
+    });
+  }
+
+  /**
+   * Get overrides for a date range
+   */
+  async getByDateRange(resourceId: string, startDate: string, endDate: string): Promise<IScheduleOverride[]> {
+    const all = await this.getByResource(resourceId);
+    return all.filter(o => o.date >= startDate && o.date <= endDate);
+  }
+
+  /**
+   * Save an override
+   */
+  async save(override: IScheduleOverride): Promise<void> {
+    return new Promise((resolve, reject) => {
+      const transaction = this.db.transaction([ScheduleOverrideStore.STORE_NAME], 'readwrite');
+      const store = transaction.objectStore(ScheduleOverrideStore.STORE_NAME);
+      const request = store.put(override);
+
+      request.onsuccess = () => resolve();
+      request.onerror = () => {
+        reject(new Error(`Failed to save override ${override.id}: ${request.error}`));
+      };
+    });
+  }
+
+  /**
+   * Delete an override
+   */
+  async delete(id: string): Promise<void> {
+    return new Promise((resolve, reject) => {
+      const transaction = this.db.transaction([ScheduleOverrideStore.STORE_NAME], 'readwrite');
+      const store = transaction.objectStore(ScheduleOverrideStore.STORE_NAME);
+      const request = store.delete(id);
+
+      request.onsuccess = () => resolve();
+      request.onerror = () => {
+        reject(new Error(`Failed to delete override ${id}: ${request.error}`));
+      };
+    });
+  }
+}

src/v2/storage/schedules/ScheduleOverrideStore.ts

@@ -0,0 +1,21 @@
+import { IStore } from '../IStore';
+
+/**
+ * ScheduleOverrideStore - IndexedDB ObjectStore for schedule overrides
+ *
+ * Stores date-specific schedule overrides for resources.
+ * Indexes: resourceId, date, compound (resourceId + date)
+ */
+export class ScheduleOverrideStore implements IStore {
+  static readonly STORE_NAME = 'scheduleOverrides';
+  readonly storeName = ScheduleOverrideStore.STORE_NAME;
+
+  create(db: IDBDatabase): void {
+    const store = db.createObjectStore(ScheduleOverrideStore.STORE_NAME, { keyPath: 'id' });
+
+    store.createIndex('resourceId', 'resourceId', { unique: false });
+    store.createIndex('date', 'date', { unique: false });
+    store.createIndex('resourceId_date', ['resourceId', 'date'], { unique: true });
+    store.createIndex('syncStatus', 'syncStatus', { unique: false });
+  }
+}