feat: send email notifications on user mentions (#372)

* feat: add notifications schema

* chore: gen migration

* feat: add mention email template

* feat: add sendMentionEmail func

* feat: add repo funcs

* feat: update card router to send emails on mention

* fix: update the editor suggestion to show all members

* feat: skip pending members in sendMentionEmails

* feat: update comments to use tiptap editor

packages/api/src/routers/card.ts

@@ -10,6 +10,7 @@ import * as workspaceRepo from "@kan/db/repository/workspace.repo";
 
 import { createTRPCRouter, protectedProcedure, publicProcedure } from "../trpc";
 import { mergeActivities } from "../utils/activities";
+import { sendMentionEmails } from "../utils/notifications";
 import { assertCanDelete, assertCanEdit, assertPermission } from "../utils/permissions";
 import { generateAttachmentUrl, generateAvatarUrl } from "@kan/shared/utils";
 
@@ -153,6 +154,17 @@ export const cardRouter = createTRPCRouter({
         await cardActivityRepo.bulkCreate(ctx.db, cardActivitesInsert);
       }
 
+      if (input.description) {
+        sendMentionEmails({
+          db: ctx.db,
+          cardPublicId: newCard.publicId,
+          commentHtml: input.description,
+          commenterUserId: userId,
+        }).catch((error) => {
+          console.error("Failed to send mention emails:", error);
+        });
+      }
+
       return newCard;
     }),
   addComment: protectedProcedure
@@ -215,6 +227,16 @@ export const cardRouter = createTRPCRouter({
         createdBy: userId,
       });
 
+      sendMentionEmails({
+        db: ctx.db,
+        cardPublicId: input.cardPublicId,
+        commentHtml: input.comment,
+        commenterUserId: userId,
+        commentId: newComment.id,
+      }).catch((error) => {
+        console.error("Failed to send mention emails:", error);
+      });
+
       return newComment;
     }),
   updateComment: protectedProcedure
@@ -295,6 +317,16 @@ export const cardRouter = createTRPCRouter({
         createdBy: userId,
       });
 
+      sendMentionEmails({
+        db: ctx.db,
+        cardPublicId: input.cardPublicId,
+        commentHtml: input.comment,
+        commenterUserId: userId,
+        commentId: updatedComment.id,
+      }).catch((error) => {
+        console.error("Failed to send mention emails:", error);
+      });
+
       return updatedComment;
     }),
   deleteComment: protectedProcedure
@@ -924,6 +956,15 @@ export const cardRouter = createTRPCRouter({
           fromDescription: existingCard.description ?? undefined,
           toDescription: input.description,
         });
+
+        sendMentionEmails({
+          db: ctx.db,
+          cardPublicId: input.cardPublicId,
+          commentHtml: input.description,
+          commenterUserId: userId,
+        }).catch((error) => {
+          console.error("Failed to send mention emails:", error);
+        });
       }
 
       if (