Fix exit-code-1 on Windows: config path mismatch and stdout encoding

Two root causes:

1. DATA_DIR mismatch: Electron always writes config/credentials to
   ~/.auto_note/ but Python scripts in dev mode fall back to PROJECT_DIR
   when not frozen and not installed to ~/.auto_note/scripts/.  On a
   fresh Windows clone the project root has no config.json, so
   CANVAS_URL is empty and the first API call exits with code 1.
   Fix: pass AUTONOTE_DATA_DIR env var from Electron so all four
   pipeline scripts (downloader, extract_caption, semantic_alignment,
   note_generation) resolve DATA_DIR correctly regardless of where the
   script file lives.

2. Windows stdout encoding: Python defaults to cp1252 on Windows when
   stdout is piped, causing UnicodeEncodeError on tqdm/Unicode output.
   Fix: add PYTHONIOENCODING=utf-8 and PYTHONUTF8=1 to subprocess env
   in both Electron main.js and gui.py.

Author: nodeeeeee

downloader.py

@@ -41,7 +41,12 @@
 # Persistent data dir: ~/.auto_note/ when installed (AppImage or scripts/ copy),
 # else the project directory (dev mode).
 _AUTO_NOTE_DIR = Path.home() / ".auto_note"
-if getattr(sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
+# AUTONOTE_DATA_DIR env var lets the Electron app (or any launcher) explicitly
+# set the data directory so config/credentials are always found regardless of
+# where the script file lives (dev mode vs installed).
+if os.environ.get("AUTONOTE_DATA_DIR"):
+    DATA_DIR = Path(os.environ["AUTONOTE_DATA_DIR"])
+elif getattr(sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
     DATA_DIR = _AUTO_NOTE_DIR
 else:
     DATA_DIR = PROJECT_DIR

electron/main.js

@@ -347,7 +347,13 @@ function runProcess(cmd) {
 
   const outDir = getOutputDir();
   fs.mkdirSync(outDir, { recursive: true });
-  const env = { ...process.env, PYTHONUNBUFFERED: '1' };
+  const env = {
+    ...process.env,
+    PYTHONUNBUFFERED:  '1',
+    PYTHONIOENCODING:  'utf-8',  // prevent UnicodeEncodeError on Windows cp1252 consoles
+    PYTHONUTF8:        '1',      // Python 3.7+ UTF-8 mode (also forces utf-8 on Windows)
+    AUTONOTE_DATA_DIR: DATA_DIR, // tell scripts where to find config/credentials
+  };
 
   // Unix: prefer node-pty so tqdm sees a real tty and uses \r refresh
   if (process.platform !== 'win32' && nodePty) {
@@ -408,7 +414,7 @@ async function runInstaller(basePython, sendLog, sendDone) {
   const runStep = (cmd, args) => new Promise((resolve) => {
     const proc = spawn(cmd, args, {
       stdio: ['ignore', 'pipe', 'pipe'],
-      env: { ...process.env, PYTHONUNBUFFERED: '1' },
+      env: { ...process.env, PYTHONUNBUFFERED: '1', PYTHONIOENCODING: 'utf-8', PYTHONUTF8: '1' },
       // On Windows use explicit shell for commands in PATH
       ...(process.platform === 'win32' ? { shell: false } : {}),
     });

extract_caption.py

@@ -24,7 +24,9 @@
 
 PROJECT_DIR   = Path(__file__).parent
 _AUTO_NOTE_DIR = Path.home() / ".auto_note"
-if getattr(sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
+if os.environ.get("AUTONOTE_DATA_DIR"):
+    DATA_DIR = Path(os.environ["AUTONOTE_DATA_DIR"])
+elif getattr(sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
     DATA_DIR = _AUTO_NOTE_DIR
 else:
     DATA_DIR = PROJECT_DIR

gui.py

@@ -612,7 +612,12 @@ def _process_chunk(raw: bytes) -> None:
                 # \r for in-place refresh.  On Windows pty is unavailable so
                 # fall back to a plain pipe (progress bars produce extra lines
                 # but work correctly).
-                env = {**os.environ, "PYTHONUNBUFFERED": "1"}
+                env = {
+                    **os.environ,
+                    "PYTHONUNBUFFERED":  "1",
+                    "PYTHONIOENCODING":  "utf-8",
+                    "PYTHONUTF8":        "1",
+                }
                 _use_pty = False
                 if sys.platform != "win32":
                     try:

note_generation.py

@@ -32,7 +32,10 @@
 PROJECT_DIR = Path(__file__).parent
 import sys as _sys
 _AUTO_NOTE_DIR = Path.home() / ".auto_note"
-if getattr(_sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
+import os as _os
+if _os.environ.get("AUTONOTE_DATA_DIR"):
+    DATA_DIR = Path(_os.environ["AUTONOTE_DATA_DIR"])
+elif getattr(_sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
     DATA_DIR = _AUTO_NOTE_DIR
 else:
     DATA_DIR = PROJECT_DIR

semantic_alignment.py

@@ -41,7 +41,10 @@
 PROJECT_DIR = Path(__file__).parent
 import sys as _sys
 _AUTO_NOTE_DIR = Path.home() / ".auto_note"
-if getattr(_sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
+import os as _os
+if _os.environ.get("AUTONOTE_DATA_DIR"):
+    DATA_DIR = Path(_os.environ["AUTONOTE_DATA_DIR"])
+elif getattr(_sys, "frozen", False) or PROJECT_DIR == _AUTO_NOTE_DIR / "scripts":
     DATA_DIR = _AUTO_NOTE_DIR
 else:
     DATA_DIR = PROJECT_DIR