fix: update Honcho config path to HoardingCow, point fork to Hermes/honcho

- Update Dockerfile to clone from code.lazyworkhorse.net/Hermes/honcho.git
  (uses build arg HONCHO_REPO, can be overridden at build time)
- Add config.toml volume mount from HoardingCow persistent path
- Use named volume honcho_data instead of host bind mount
- Declare honcho_data as external volume in top-level volumes section

copy_script.txt

@@ -0,0 +1,7 @@
+import shutil, os
+src = "/opt/data/projects/gortium/compose/ai/compose_updated.txt"
+dst = "/opt/data/projects/gortium/compose/ai/compose.yml"
+print(f"Source exists: {os.path.exists(src)}, size: {os.path.getsize(src)}")
+print(f"Dest exists: {os.path.exists(dst)}")
+shutil.copy2(src, dst)
+print(f"Copied, dest size: {os.path.getsize(dst)}")