fix(messages): normalize escaped markdown newlines

src/main/database/activity.ts

@@ -1,6 +1,7 @@
 import { randomUUID } from "node:crypto";
 import type { DatabaseSync } from "node:sqlite";
 import type { CommentRecord } from "@shared/types";
+import { normalizeMarkdownText } from "@shared/markdown-text";
 import type { ReadAll } from "./helpers";
 import { nowIso } from "./helpers";
 
@@ -19,12 +20,13 @@ export function buildActivityMethods(
       const taskRow = getDb().prepare("select company_id from tasks where id = ?").get(input.taskId) as { company_id: string } | undefined;
       if (!taskRow) throw new Error("Task not found.");
       if (taskRow.company_id !== input.companyId) throw new Error("Task does not belong to this company.");
+      const body = normalizeMarkdownText(input.body);
       const id = randomUUID();
       const ts = nowIso();
       getDb().prepare(
         "insert into task_comments (id, company_id, task_id, author_agent_id, author_name, body, created_at) values (?, ?, ?, ?, ?, ?, ?)",
-      ).run(id, input.companyId, input.taskId, input.authorAgentId, input.authorName, input.body, ts);
-      return { id, companyId: input.companyId, taskId: input.taskId, authorAgentId: input.authorAgentId, authorName: input.authorName, body: input.body, createdAt: ts };
+      ).run(id, input.companyId, input.taskId, input.authorAgentId, input.authorName, body, ts);
+      return { id, companyId: input.companyId, taskId: input.taskId, authorAgentId: input.authorAgentId, authorName: input.authorName, body, createdAt: ts };
     },
 
     listComments(taskId: string): CommentRecord[] {

src/main/database/messages.ts

@@ -2,6 +2,7 @@ import { randomUUID } from "node:crypto";
 import type { DatabaseSync, SQLInputValue } from "node:sqlite";
 import log from "electron-log/main.js";
 import type { AgentMessageRecord, AgentRecord } from "@shared/types";
+import { normalizeMarkdownText } from "@shared/markdown-text";
 import {
   BOARD_READER_ID,
   type ReadAll,
@@ -66,6 +67,7 @@ export function buildMessageMethods(
       }
       const senderKind = input.senderKind
         ?? (input.fromAgentId === BOARD_READER_ID ? "human" : "agent");
+      const body = normalizeMarkdownText(input.body);
       const id = randomUUID();
       const createdAt = nowIso();
       // Single transaction: the row and its mention fan-out must land
@@ -86,7 +88,7 @@ export function buildMessageMethods(
             channel,
             input.channelTargetId ?? null,
             input.subject,
-            input.body,
+            body,
             input.priority ?? "normal",
             input.parentMessageId ?? null,
             input.attachmentsJson ?? "[]",