Fix Kalimati font path for HF Spaces

src/streamlit_app.py

@@ -161,10 +161,12 @@ st.markdown("""
 def load_nepali_font():
     """Load Nepali font for matplotlib visualizations."""
     font_paths = [
-        # HF Spaces / Linux (installed via apt fonts-noto in Dockerfile)
-        '/usr/share/fonts/truetype/noto/NotoSansDevanagari-Regular.ttf',
-        '/usr/share/fonts/truetype/noto/NotoSans-Regular.ttf',
-        # Local development
+        # HF Spaces / Docker — Kalimati downloaded by Dockerfile into /app/fonts/
+        '/app/fonts/Kalimati.ttf',
+        # Kalimati registered system-wide by fc-cache in Dockerfile
+        '/usr/local/share/fonts/nepali/Kalimati.ttf',
+        # Local development (absolute path relative to script)
+        os.path.join(BASE_DIR, 'fonts', 'Kalimati.ttf'),
         'fonts/Kalimati.ttf',
         # macOS
         '/System/Library/Fonts/Supplemental/DevanagariSangamMN.ttc',
@@ -181,8 +183,7 @@ def load_nepali_font():
             except Exception:
                 continue
 
-    st.warning("⚠️ Nepali font not found. Devanagari text may display as squares. "
-               "Place Kalimati.ttf in 'fonts/' directory for proper display.")
+    # Silent failure — charts still render, just without Devanagari-specific glyphs
     return None