feat(ai): add emit_progress() calls to all Python AI scripts

packages/ai/python/ocr.py

@@ -3,6 +3,11 @@ import sys
 import json
 
 
+def emit_progress(percent, stage):
+    """Emit structured progress to stderr for bridge.ts to capture."""
+    print(json.dumps({"progress": percent, "stage": stage}), file=sys.stderr, flush=True)
+
+
 def main():
     input_path = sys.argv[1]
     settings = json.loads(sys.argv[2]) if len(sys.argv) > 2 else {}
@@ -11,12 +16,15 @@ def main():
     language = settings.get("language", "en")
 
     try:
+        emit_progress(10, "Loading OCR engine")
         if engine == "paddleocr":
             try:
                 from paddleocr import PaddleOCR
 
                 ocr = PaddleOCR(use_angle_cls=True, lang=language)
+                emit_progress(30, "Analyzing text regions")
                 result = ocr.ocr(input_path, cls=True)
+                emit_progress(70, "Extracting text")
                 text = "\n".join(
                     [
                         line[1][0]
@@ -26,6 +34,7 @@ def main():
                         if line and line[1]
                     ]
                 )
+                emit_progress(95, "Formatting results")
                 print(
                     json.dumps({"success": True, "text": text, "engine": "paddleocr"})
                 )
@@ -47,15 +56,18 @@ def main():
             tess_lang = lang_map.get(language, "eng")
 
             try:
+                emit_progress(30, "Running Tesseract")
                 result = subprocess.run(
                     ["tesseract", input_path, "stdout", "-l", tess_lang],
                     capture_output=True,
                     text=True,
                     timeout=120,
                 )
+                emit_progress(70, "Extracting text")
                 text = result.stdout.strip()
                 if result.returncode != 0 and not text:
                     raise RuntimeError(result.stderr.strip() or "Tesseract failed")
+                emit_progress(95, "Formatting results")
                 print(
                     json.dumps(
                         {"success": True, "text": text, "engine": "tesseract"}