Fix Dockerfile build and remove camera device requirement

- Simplify build process by removing dummy source step
- Fix binary name from camera-trng to camera-qrng
- Copy skill.md to fix include_str! error
- Remove /dev/video0 device requirement from docker-compose
- Allows container to run with CSPRNG fallback when no camera available

Co-authored-by: Cursor <cursoragent@cursor.com>

Dockerfile

@@ -14,13 +14,10 @@ WORKDIR /app
 
 # Copy manifests first for better caching
 COPY Cargo.toml Cargo.lock ./
-
-# Create dummy src to cache dependencies
-RUN mkdir src && echo "fn main() {}" > src/main.rs
-RUN cargo build --release && rm -rf src target/release/deps/camera_trng*
-
-# Copy actual source and build
 COPY src ./src
+COPY skill.md ./
+
+# Build
 RUN cargo build --release
 
 # Runtime stage - minimal image
@@ -37,7 +34,7 @@ RUN useradd -m -u 1000 trng
 WORKDIR /app
 
 # Copy binary from builder
-COPY --from=builder /app/target/release/camera-trng .
+COPY --from=builder /app/target/release/camera-qrng .
 
 # Set ownership
 RUN chown -R trng:trng /app
@@ -48,4 +45,4 @@ ENV PORT=8787
 
 EXPOSE 8787
 
-CMD ["./camera-trng"]
+CMD ["./camera-qrng"]

docker-compose.yml

@@ -8,6 +8,4 @@ services:
     environment:
       - PORT=8787
       - RUST_LOG=info
-    devices:
-      - /dev/video0:/dev/video0
     restart: on-failure