Fix build

backend/Dockerfile

@@ -7,15 +7,25 @@ RUN apt-get update && apt-get install -y \
     libsndfile1-dev \
     gcc \
     g++ \
+    gfortran \
+    libopenblas-dev \
+    liblapack-dev \
+    pkg-config \
+    curl \
     && rm -rf /var/lib/apt/lists/*
 
 # Set working directory
 WORKDIR /app
 
+# Upgrade pip, setuptools, wheel
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel
+
 # Copy requirements
 COPY requirements.txt .
 
-# Install Python dependencies
+# Install Python dependencies in stages for better caching
+RUN pip install --no-cache-dir numpy==1.24.3
+RUN pip install --no-cache-dir scipy==1.11.4
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy application code

backend/Dockerfile.minimal

@@ -0,0 +1,35 @@
+FROM python:3.11-slim
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    libsndfile1 \
+    gcc \
+    g++ \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Upgrade pip
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel
+
+# Copy minimal requirements
+COPY requirements-minimal.txt .
+
+# Install dependencies
+RUN pip install --no-cache-dir -r requirements-minimal.txt
+
+# Copy application code
+COPY src/ ./src/
+COPY alembic.ini .
+
+# Create models directory
+RUN mkdir -p /app/models
+
+# Expose port
+EXPOSE 8000
+
+# Run server (skip migrations for now)
+CMD uvicorn src.api.main:app --host 0.0.0.0 --port 8000

backend/requirements-minimal.txt

@@ -0,0 +1,31 @@
+# Minimal requirements (without Essentia for faster build)
+
+# Web Framework
+fastapi==0.109.0
+uvicorn[standard]==0.27.0
+python-multipart==0.0.6
+
+# Database
+sqlalchemy==2.0.25
+psycopg2-binary==2.9.9
+pgvector==0.2.4
+alembic==1.13.1
+
+# Audio Processing (without Essentia)
+librosa==0.10.1
+soundfile==0.12.1
+audioread==3.0.1
+mutagen==1.47.0
+
+# Scientific Computing
+numpy==1.24.3
+scipy==1.11.4
+
+# Configuration & Validation
+pydantic==2.5.3
+pydantic-settings==2.1.0
+python-dotenv==1.0.0
+
+# Utilities
+aiofiles==23.2.1
+httpx==0.26.0

backend/src/models/crud.py

@@ -55,7 +55,7 @@ def create_track(db: Session, analysis: AudioAnalysis) -> AudioTrack:
         vocal_gender=analysis.vocal_gender,
 
         # Metadata
-        metadata=analysis.metadata,
+        extra_metadata=analysis.metadata,
     )
 
     db.add(track)

backend/src/models/schema.py

@@ -60,7 +60,7 @@ class AudioTrack(Base):
     embedding_model = Column(String, nullable=True)  # Model name used
 
     # Additional metadata (JSON for flexibility)
-    metadata = Column(JSON, nullable=True)
+    extra_metadata = Column(JSON, nullable=True)
 
     # Indexes
     __table_args__ = (
@@ -123,5 +123,5 @@ class AudioTrack(Base):
                 "dimension": 512 if self.embedding else None,
                 # Don't include actual vector in API responses (too large)
             },
-            "metadata": self.metadata or {},
+            "metadata": self.extra_metadata or {},
         }