feat(PRO-547): bidirectional comment sync between the CLI and GitHub

packages/cli/src/db/schema/comment.ts

@@ -3,6 +3,8 @@ import { LOCAL_USER_ID } from "../local-user.js";
 import { baseColumns } from "./columns.js";
 import { commentThread } from "./comment-thread.js";
 
+// Local (CLI-only) review comments. GitHub review comments are never mirrored
+// here — they're fetched live (see the `review` server layer).
 export const comment = sqliteTable(
 	"comment",
 	{

packages/cli/src/github/exec.ts

@@ -13,6 +13,20 @@ export async function gh(args: string[], cwd: string): Promise<string> {
 	return stdout;
 }
 
+/**
+ * Run a `gh` command and return stdout, surfacing failures as a clean Error with
+ * gh's stderr message. Use for user-initiated actions (reads and writes alike)
+ * where the failure reason should reach the user, unlike the passive PR-context
+ * adapters that degrade to empty.
+ */
+export async function ghOrThrow(args: string[], cwd: string): Promise<string> {
+	try {
+		return await gh(args, cwd);
+	} catch (err) {
+		throw new Error(ghErrorMessage(err));
+	}
+}
+
 /**
  * Extract the most useful message from a failed `gh`/`git` exec: prefer the
  * command's stderr (where these tools write human-readable failures), falling