Minimize Docker Builds

[den-sq]

Minimize potentially slow building of docker packages.

• - Use GPU containers as base containers where appropriate.
• - Use container registry to store pre-built images.
• - Use Hot Reloading for development to avoid unnessecary long builds.
• - Build non-docker reliant .exe files.

[den-sq]

Opened draft PR #82 with the first concrete cleanup: production startup no longer forces docker compose --build on every app launch, and the development docs now include the build-readiness follow-up checklist. Remaining larger items are registry-published server images, reload-friendly dev compose, plugin-template dev compose, and keeping GPU runtime bases in plugin/override images instead of the core app image.

[den-sq]

Non-docker executables are significant work whose payback isn't currently worth the time and ongoing maintenance.
Remaining are successfully addressed elsewhere:

#82; #84; #86; ChengLabResearch/ouroboros_autoseg_plugin#30, ChengLabResearch/ouroboros_autoseg_plugin#32

Further image / production separate in #87, #88 , #89.