Fix save path and recording context resolution

Improve processor metadata finalization by rebuilding recording context from the current run directory and then overlaying cached values, so missing fields are backfilled before merging file context. Also update socket processor saving so explicitly provided relative filenames are saved under the `data/` directory, matching expected output behavior.

Author: C-Achard

dlclivegui/gui/main_window.py

@@ -2002,7 +2002,17 @@ def _build_processor_recording_context(self, run_dir) -> dict:
         return ctx
 
     def _final_processor_recording_context(self) -> dict:
-        context = dict(self._processor_recording_context or {})
+        cached = self._processor_recording_context
+
+        run_dir = None
+        if cached is not None:
+            run_dir = cached.get("run_dir")
+        if run_dir is None:
+            run_dir = getattr(self._rec_manager, "run_dir", None)
+
+        context = self._build_processor_recording_context(run_dir)
+        if cached is not None:
+            context.update(cached)
 
         try:
             final_file_context = self._rec_manager.get_recording_file_context()

dlclivegui/processors/dlc_processor_socket.py

@@ -376,6 +376,7 @@ def _clear_data_queues(self):
 
     def save(self, file=None):
         target = file
+        explicit_file = file is not None
 
         if target is None:
             target = getattr(self, "save_path", None)
@@ -387,6 +388,9 @@ def save(self, file=None):
         try:
             save_dict = self.get_data()
             save_path = Path(target)
+            if explicit_file and not save_path.is_absolute():
+                save_path = Path("data") / save_path
+
             save_path.parent.mkdir(parents=True, exist_ok=True)
 
             if self.save_original: