fix(docker): copy all refactored bridge modules into the image

The Dockerfile still only COPYed the pre-refactor module list, so the
testing image built from the split-module branch crashed immediately
with ModuleNotFoundError: No module named 'spoolman_client'. Add the
new bridge_*.py mixins plus spoolman_client/gcode_store/gcode_meta/
camera/credentials. Verified with a local docker build + run against
the real printer.

Dockerfile

@@ -9,6 +9,7 @@ RUN pip install --no-cache-dir -r requirements.txt && \
     apt-get purge -y gcc python3-dev && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*
 
 COPY kobrax_moonraker_bridge.py .
+COPY bridge_*.py .
 COPY web/ ./web/
 # Statische Daten (orca_filaments.json etc.) liegen in /app/static/, NICHT in
 # /app/data/ — letzteres wird vom User als Volume gemountet (Runtime-State).
@@ -17,6 +18,11 @@ COPY config_loader.py .
 COPY env_loader.py .
 COPY kobrax_client.py .
 COPY orca_filaments.py .
+COPY spoolman_client.py .
+COPY gcode_store.py .
+COPY gcode_meta.py .
+COPY camera.py .
+COPY credentials.py .
 COPY VERSION .
 COPY anycubic_slicer.crt .
 COPY anycubic_slicer.key .