Fix dev workflow hanging and implement runtime branch detection

- Fix duplicate Dockerfile sections that were causing build hangs
- Replace complex build args with simple runtime git branch detection
- Revert CI workflows to working state (remove build args and debug code)
- Add automatic version tagging: dev branch shows "0.2.15-dev"
- Enhanced movie fallback logic for rename-first scenarios
- Improved logging to trace movie date decision process

nfoguard.py

@@ -781,12 +781,22 @@ try:
 except:
     version = "0.1.0"
 
-# Check if running in dev environment (set during Docker build)
-build_type = os.environ.get('BUILD_TYPE', 'production')
-image_tag = os.environ.get('IMAGE_TAG', 'latest')
-
-if (build_type == 'dev' or 'dev' in image_tag.lower()):
-    version = f"{version}-dev"
+# Check if running from dev branch (detect at runtime)
+try:
+    # Try to read git branch from .git/HEAD
+    git_head_path = Path(__file__).parent / ".git" / "HEAD"
+    if git_head_path.exists():
+        head_content = git_head_path.read_text().strip()
+        if "ref: refs/heads/dev" in head_content:
+            version = f"{version}-dev"
+        elif head_content.startswith("ref: refs/heads/"):
+            # Extract branch name for other branches
+            branch = head_content.split("refs/heads/")[-1]
+            if branch != "main":
+                version = f"{version}-{branch}"
+except Exception:
+    # If git detection fails, that's fine - use base version
+    pass
 
 app = FastAPI(
     title="NFOGuard",