fix: address triaged review findings

app/gitea.js

@@ -11,7 +11,18 @@ const api = (path) => `${GITEA_SERVER_URL.replace(/\/$/, '')}/api/v1${path}`;
  */
 export async function getPRDiff() {
   const resp = await axios.get(api(`/repos/${GITEA_REPOSITORY}/pulls/${PR_NUMBER}.diff`), { headers: headers(), timeout: 60000, httpsAgent });
-  return filterDiff(resp.data, ['.gitea/', '.amazonq/', '.claude/', '.codex/', '.gemini/', '.github/', 'CLAUDE.md', 'GEMINI.md', 'TODO.md', 'README.md']);
+  return filterDiff(resp.data, [
+    '.gitea/',
+    '.amazonq/',
+    '.claude/',
+    '.codex/',
+    '.gemini/',
+    '.github/',
+    'CLAUDE.md',
+    'GEMINI.md',
+    'TODO.md',
+    'README.md',
+  ]);
 }
 
 /**

app/gitea.test.js

@@ -1,12 +1,11 @@
 import { describe, it, afterEach, mock } from 'node:test';
 import assert from 'node:assert/strict';
 import axios from 'axios';
+import { getPRDiff, filterDiff, postComment } from './gitea.js';
 
 afterEach(() => mock.restoreAll());
 
-describe('gitea', async () => {
-  const { getPRDiff, filterDiff, postComment } = await import('./gitea.js');
-
+describe('gitea', () => {
   it('getPRDiff calls Gitea diff API with Authorization header', async () => {
     let capturedUrl, capturedOpts;
     mock.method(axios, 'get', async (url, opts) => {
@@ -59,9 +58,7 @@ describe('gitea', async () => {
   });
 });
 
-describe('filterDiff', async () => {
-  const { filterDiff } = await import('./gitea.js');
-
+describe('filterDiff', () => {
   const block = (file) => `diff --git a/${file} b/${file}\n--- a/${file}\n+++ b/${file}\n@@ -1 +1 @@\n-old\n+new\n`;
 
   it('filters out configured folder blocks', () => {

app/json.test.js

@@ -6,6 +6,7 @@ import path from 'path';
 import { stripCodeFence, repairJSONArrayWithAI, validateJSONArrayFile, ensureJSONArrayFileExists } from './json.js';
 
 describe('json helpers', () => {
+  const MAX_JSON_BYTES = 1024 * 1024;
   let workspace;
 
   beforeEach(() => {
@@ -76,6 +77,16 @@ describe('json helpers', () => {
     assert.equal(fs.readFileSync(fullPath, 'utf8'), '[]\n');
   });
 
+  it('reads a valid JSON file whose size equals the maximum limit', async () => {
+    const fullPath = path.join(workspace, '.gitea/ai-review/findings.json');
+    fs.mkdirSync(path.dirname(fullPath), { recursive: true });
+    fs.writeFileSync(fullPath, `[]${' '.repeat(MAX_JSON_BYTES - 2)}`, 'utf8');
+
+    const result = await validateJSONArrayFile(fullPath, '.gitea/ai-review/findings.json');
+
+    assert.deepEqual(result, { exists: true, valid: true, repaired: false });
+  });
+
   it('repairs invalid JSON using AI output and rewrites the file', async () => {
     const fullPath = path.join(workspace, '.gitea/ai-review/findings.json');
     fs.mkdirSync(path.dirname(fullPath), { recursive: true });
@@ -90,6 +101,20 @@ describe('json helpers', () => {
     assert.equal(fs.readFileSync(fullPath, 'utf8'), '[{"fixed":true}]\n');
   });
 
+  it('preserves a trailing newline returned by AI repair', async () => {
+    const fullPath = path.join(workspace, '.gitea/ai-review/findings.json');
+    fs.mkdirSync(path.dirname(fullPath), { recursive: true });
+    fs.writeFileSync(fullPath, '{broken', 'utf8');
+
+    const result = await validateJSONArrayFile(fullPath, '.gitea/ai-review/findings.json', async (_fullPath, _label, original) => {
+      assert.equal(original, '{broken');
+      return '[{"fixed":true}]\n';
+    });
+
+    assert.deepEqual(result, { exists: true, valid: true, repaired: true });
+    assert.equal(fs.readFileSync(fullPath, 'utf8'), '[{"fixed":true}]\n');
+  });
+
   it('throws when AI repair fails', async () => {
     const fullPath = path.join(workspace, '.gitea/ai-review/findings.json');
     fs.mkdirSync(path.dirname(fullPath), { recursive: true });