Remove arbitrary document truncation and increase API request timeouts to 300 seconds

pipeline.py

@@ -65,7 +65,7 @@ def call_hf_router(model: str, messages: list, token: str) -> str:
                 "https://router.huggingface.co/v1/chat/completions",
                 headers=headers,
                 json=data,
-                timeout=45
+                timeout=300
             )
             response.raise_for_status()
             res_json = response.json()
@@ -150,9 +150,6 @@ def stage_1a_segment_transcript(transcript_text: str, token: str) -> list:
 
 # --- STAGE 1b: Extract themes ---
 def stage_1b_extract_themes(doc_text: str, token: str) -> str:
-    if len(doc_text) > 40000:
-        doc_text = doc_text[:40000] + "\n...[Document Truncated]..."
-        
     system_prompt = (
         "You are an expert researcher. Extract the main themes, key concepts, core arguments, facts, terminology, "
         "and themes from the following document.\n"