fix: resolve python syntax error in Dockerfile try/except blocks

Dockerfile

@@ -44,26 +44,20 @@ print('✓ Ettin Reranker cached')"
 # This is the English→Indic direction model (Sprint 18).
 # Required for local translation of English responses back to user's language.
 RUN python -c "\
-try: \
-    from transformers import AutoTokenizer, AutoModelForSeq2SeqLM; \
-    AutoTokenizer.from_pretrained('ai4bharat/indictrans2-en-indic-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/en_to_indic'); \
-    AutoModelForSeq2SeqLM.from_pretrained('ai4bharat/indictrans2-en-indic-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/en_to_indic'); \
-    print('✓ IndicTrans2 English→Indic model cached'); \
-except Exception as e: \
-    print(f'⚠️ IndicTrans2 en-indic cache failed (non-blocking): {e}')"
+from transformers import AutoTokenizer, AutoModelForSeq2SeqLM; \
+AutoTokenizer.from_pretrained('ai4bharat/indictrans2-en-indic-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/en_to_indic'); \
+AutoModelForSeq2SeqLM.from_pretrained('ai4bharat/indictrans2-en-indic-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/en_to_indic'); \
+print('✓ IndicTrans2 English→Indic model cached')"
 
 # ── Layer 5b: Pre-cache IndicTrans2 Indic→English model ──────
 # This is the REVERSE direction model (Sprint 18).
 # Required for local translation of Hindi/Tamil queries INTO English
 # before semantic search against the English vector corpus.
 RUN python -c "\
-try: \
-    from transformers import AutoTokenizer, AutoModelForSeq2SeqLM; \
-    AutoTokenizer.from_pretrained('ai4bharat/indictrans2-indic-en-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/indic_to_en'); \
-    AutoModelForSeq2SeqLM.from_pretrained('ai4bharat/indictrans2-indic-en-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/indic_to_en'); \
-    print('✓ IndicTrans2 Indic→English model cached'); \
-except Exception as e: \
-    print(f'⚠️ IndicTrans2 indic-en cache failed (non-blocking): {e}')"
+from transformers import AutoTokenizer, AutoModelForSeq2SeqLM; \
+AutoTokenizer.from_pretrained('ai4bharat/indictrans2-indic-en-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/indic_to_en'); \
+AutoModelForSeq2SeqLM.from_pretrained('ai4bharat/indictrans2-indic-en-dist-200M', trust_remote_code=True, cache_dir='/app/models/indictrans2/indic_to_en'); \
+print('✓ IndicTrans2 Indic→English model cached')"
 
 # ── Layer 6: Copy application code LAST ──────────────────────
 # Code changes don't invalidate the expensive model cache layers.