feat: saved board views and richer board filters

The board now filters by text, type, priority and unassigned tickets as
well. Any combination can be saved as a named view, private or shared with
the project, and opened again with one click.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/api/tracker/infrastructure/src/lib/mongo/read-model.schemas.ts

@@ -7,6 +7,7 @@ import {
   IssueTimelineEntry,
   ProjectReadModel,
   ReleaseReadModel,
+  SavedFilterReadModel,
   implicitRank,
 } from '@task-stream/api/tracker/domain';
 import { Schema } from 'mongoose';
@@ -26,6 +27,7 @@ export type ReleaseDoc = Doc<ReleaseReadModel>;
 export type ActivityDoc = Doc<ActivityReadModel>;
 export type TimelineDoc = Doc<IssueTimelineEntry>;
 export type NotificationDoc = Doc<NotificationReadModel>;
+export type SavedFilterDoc = Doc<SavedFilterReadModel>;
 export interface NotificationSettingsDoc {
   _id: string;
   email: boolean;
@@ -40,6 +42,7 @@ export const ReadModels = {
   Timeline: 'IssueTimelineReadModel',
   Notification: 'NotificationReadModel',
   NotificationSettings: 'NotificationSettings',
+  SavedFilter: 'SavedFilter',
 } as const;
 
 const userRef = { _id: false, id: String, name: String };
@@ -160,6 +163,20 @@ export const NotificationSettingsSchema = new Schema<NotificationSettingsDoc>(
   { ...loose, collection: 'notification_settings' },
 );
 
+export const SavedFilterSchema = new Schema<SavedFilterDoc>(
+  {
+    _id: String,
+    projectId: String,
+    owner: userRef,
+    name: String,
+    shared: Boolean,
+    createdAt: String,
+  },
+  { ...loose, collection: 'saved_filters' },
+);
+SavedFilterSchema.index({ projectId: 1, 'owner.id': 1 });
+SavedFilterSchema.index({ projectId: 1, shared: 1 });
+
 export const READ_MODEL_SCHEMAS = [
   { name: ReadModels.Project, schema: ProjectSchema },
   { name: ReadModels.Issue, schema: IssueSchema },
@@ -169,6 +186,7 @@ export const READ_MODEL_SCHEMAS = [
   { name: ReadModels.Timeline, schema: TimelineSchema },
   { name: ReadModels.Notification, schema: NotificationSchema },
   { name: ReadModels.NotificationSettings, schema: NotificationSettingsSchema },
+  { name: ReadModels.SavedFilter, schema: SavedFilterSchema },
 ];
 
 export function fromDoc<T extends { _id: string }>(

libs/api/tracker/infrastructure/src/lib/mongo/saved-filters.repository.ts

@@ -0,0 +1,49 @@
+import { Injectable } from '@nestjs/common';
+import { InjectModel } from '@nestjs/mongoose';
+import { SavedFiltersRepository } from '@task-stream/api/tracker/application';
+import { SavedFilterReadModel } from '@task-stream/api/tracker/domain';
+import { Model } from 'mongoose';
+import { ReadModels, SavedFilterDoc, fromDoc } from './read-model.schemas';
+
+@Injectable()
+export class MongoSavedFiltersRepository extends SavedFiltersRepository {
+  constructor(
+    @InjectModel(ReadModels.SavedFilter)
+    private readonly filters: Model<SavedFilterDoc>,
+  ) {
+    super();
+  }
+
+  async findVisible(
+    projectId: string,
+    userId: string,
+  ): Promise<SavedFilterReadModel[]> {
+    const docs = await this.filters
+      .find({ projectId, $or: [{ 'owner.id': userId }, { shared: true }] })
+      .sort({ shared: 1, name: 1 })
+      .lean<SavedFilterDoc[]>();
+    return docs.map((doc) => toFilter(doc));
+  }
+
+  async findById(id: string): Promise<SavedFilterReadModel | null> {
+    const doc = await this.filters.findById(id).lean<SavedFilterDoc>();
+    return doc ? toFilter(doc) : null;
+  }
+
+  countOwned(projectId: string, userId: string): Promise<number> {
+    return this.filters.countDocuments({ projectId, 'owner.id': userId });
+  }
+
+  async insert({ id, ...rest }: SavedFilterReadModel): Promise<void> {
+    await this.filters.create({ _id: id, ...rest });
+  }
+
+  async delete(id: string): Promise<void> {
+    await this.filters.deleteOne({ _id: id });
+  }
+}
+
+function toFilter(doc: SavedFilterDoc): SavedFilterReadModel {
+  const filter = fromDoc(doc) as SavedFilterReadModel;
+  return { ...filter, criteria: filter.criteria ?? {} };
+}

libs/api/tracker/infrastructure/src/lib/mongo/upsert-materialized.repositories.ts

@@ -29,6 +29,7 @@ import {
   ProjectDoc,
   ReadModels,
   ReleaseDoc,
+  SavedFilterDoc,
   TimelineDoc,
 } from './read-model.schemas';
 import { upsertIfNewer } from './upsert-if-newer';
@@ -44,6 +45,8 @@ export class MongoUpsertMaterializedProjectRepository extends UpsertMaterialized
     private readonly activity: Model<ActivityDoc>,
     @InjectModel(ReadModels.Timeline)
     private readonly timeline: Model<TimelineDoc>,
+    @InjectModel(ReadModels.SavedFilter)
+    private readonly savedFilters: Model<SavedFilterDoc>,
   ) {
     super();
   }
@@ -53,6 +56,8 @@ export class MongoUpsertMaterializedProjectRepository extends UpsertMaterialized
       this.projects.deleteOne({ _id: projectId }),
       this.activity.deleteMany({ projectId }),
       this.timeline.deleteMany({ projectId }),
+      // Views of the board of a project that is gone.
+      this.savedFilters.deleteMany({ projectId }),
     ]);
   }
 

libs/api/tracker/infrastructure/src/lib/tracker-infrastructure.module.ts

@@ -7,6 +7,7 @@ import {
   ChangeFeed,
   NotificationMailer,
   NotificationsRepository,
+  SavedFiltersRepository,
   FindActivityRepository,
   FindCommentsRepository,
   FindIssuesRepository,
@@ -56,6 +57,7 @@ import { PostgresReleaseIssuesRepository } from './postgres/release-issues.repos
 import { PostgresTrackerStreamsRepository } from './postgres/tracker-streams.repository';
 import { RedisChangeFeed } from './realtime/redis-change-feed';
 import { MongoNotificationsRepository } from './mongo/notifications.repository';
+import { MongoSavedFiltersRepository } from './mongo/saved-filters.repository';
 import { SmtpNotificationMailer } from './mail/smtp-notification.mailer';
 import { FileSystemAttachmentStorage } from './storage/file-system-attachment.storage';
 
@@ -107,6 +109,7 @@ const PORTS = [
   { provide: AttachmentStorage, useClass: FileSystemAttachmentStorage },
   // Notifications → MongoDB (per person), copies by e-mail → SMTP (optional)
   { provide: NotificationsRepository, useClass: MongoNotificationsRepository },
+  { provide: SavedFiltersRepository, useClass: MongoSavedFiltersRepository },
   { provide: NotificationMailer, useClass: SmtpNotificationMailer },
   // Realtime → Redis pub/sub
   { provide: ChangeFeed, useClass: RedisChangeFeed },