feat: Update Python version, fix frontend paths, and enhance exam instructions

- Update GitHub Actions to use Python 3.13
- Fix frontend API paths to use relative URLs instead of hardcoded localhost
- Add audio-test.mp3 to PyInstaller bundle and resource copying
- Update exam instructions with proper TTS audio test message
- Add completed_exams.json to .gitignore
- Fix file permissions for portable Linux builds

Author: Mtrya

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.11']
+        python-version: ['3.13']
 
     steps:
     - uses: actions/checkout@v4
@@ -60,6 +60,7 @@ jobs:
       run: |
         mkdir -p dist/Echo-Portable
         cp dist/Echo dist/Echo-Portable/
+        chmod +x dist/Echo dist/Echo-Portable/Echo
         cp README.md dist/Echo-Portable/ 2>/dev/null || true
 
     - name: Create portable package (Windows)

.gitignore

@@ -68,6 +68,7 @@ audio_cache/tts/*
 # Secrets
 config.yaml
 !config.yaml.example
+completed_exams.json
 
 # Development files
 test_files

audio_cache/tts/audio-test.mp3

@@ -99,6 +99,15 @@ def copy_default_files(self, source_base: Path):
                     import shutil
                     shutil.copy(exam_file, self.exams_dir)
 
+        # Copy audio-test.mp3 if it doesn't exist
+        audio_test_file = self.tts_cache / "audio-test.mp3"
+        if not audio_test_file.exists():
+            source_audio_test = source_base / "audio_cache" / "tts" / "audio-test.mp3"
+            if source_audio_test.exists():
+                import shutil
+                shutil.copy(source_audio_test, audio_test_file)
+                print(f"Copied audio-test.mp3 to {audio_test_file}")
+
     def get_bundled_path(self, relative_path: str) -> Path:
         """Get path to bundled resources (for PyInstaller)."""
         if getattr(sys, 'frozen', False):

backend/paths.py

@@ -13,6 +13,8 @@ a = Analysis(
         ('config.yaml.example', '.'),
         ('prompts', 'prompts'),
         ('exams', 'exams'),
+        # Audio files
+        ('audio_cache/tts/audio-test.mp3', 'audio_cache/tts'),
         # Include audio_cache directory structure (empty directories will be created)
         ('audio_cache', 'audio_cache'),
     ],

echo.spec

@@ -5,7 +5,7 @@ exam:
   section_instructions:
     read_aloud:
       text: "For read aloud questions, you should read displayed English sentences aloud."
-      tts: "For read aloud questions, you should read displayed English sentences aloud"
+      tts: "Can you hear this clearly? This is a test to make sure your audio is working perfectly. Please listen carefully and get ready for your English exam!Can you hear this clearly? This is a test to make sure your audio is working perfectly. Please listen carefully and get ready for your English exam!Can you hear this clearly? This is a test to make sure your audio is working perfectly. Please listen carefully and get ready for your English exam!"
 
     multiple_choice:
       text: "For multiple choice questions, read the question carefully and choose the best answer from A, B, C or D."

exams/exam-2098.yaml

@@ -274,7 +274,7 @@ export default {
         const filenames = selectedFiles.value.map(file => file.name)
 
         // Send to backend
-        const response = await fetch('http://localhost:8000/convert/file', {
+        const response = await fetch('/convert/file', {
           method: 'POST',
           headers: {
             'Content-Type': 'application/json',
@@ -365,7 +365,7 @@ export default {
       }
 
       try {
-        const renameResponse = await fetch('http://localhost:8000/rename-exam', {
+        const renameResponse = await fetch('/rename-exam', {
           method: 'POST',
           headers: {
             'Content-Type': 'application/json',

frontend/src/components/FileConverter.vue

@@ -194,7 +194,7 @@ export default {
 
     const loadSettings = async () => {
       try {
-        const response = await fetch('http://localhost:8000/settings')
+        const response = await fetch('/settings')
         const data = await response.json()
 
         if (data.success) {
@@ -216,7 +216,7 @@ export default {
       apiTestResult.value = null
 
       try {
-        const response = await fetch('http://localhost:8000/test-api', {
+        const response = await fetch('/test-api', {
           method: 'POST',
           headers: {
             'Content-Type': 'application/json'
@@ -251,7 +251,7 @@ export default {
       saveResult.value = null
 
       try {
-        const response = await fetch('http://localhost:8000/settings', {
+        const response = await fetch('/settings', {
           method: 'POST',
           headers: {
             'Content-Type': 'application/json'