Henry/pre-build workspace dependencies in dev Docker images

[Henrp]

Summary:

• Deployed missing bt-stage-mongo on hozer-51 (was causing backend
  CrashLoopBackOff) and populated it with data via manual datapuller
  runs (only 2019 data right now). Cronjobs fill in the rest of the data at 4am.
• Pre-build workspace dependencies in dev Docker images so container
  startup is fast enough to not timeout the 300s CI rollout wait.

Testing:

• staging.berkeleytime.com: catalog should show Summer 2019 classes
  now, Rest will populate after tonight's 4am cronjobs
• Trigger "CD: Deploy to Development" on this branch and confirm
  the backend rollout completes without the 300s timeout error

[ARtheboss]

@Henrp cool, but I think only Spring 2026 and Summer 2026 came and they don't have classes. Could you look into this?

[Henrp]

@ARtheboss staging has 768Mi memory limit while prod has 3Gi. this makes the 'classes-lat-five-years' bulk pull crash mid run (OOMKilled). I think this is why only two semesters out of the rest of the semester was pulled. I think to solve this we need to upgrade memory limit to ~2Gi, but im not really sure if this is necessary because its for staging and we don't really need all the data for testing. We have around 1.4Gi free from the 15Gi total so upgrading is also an option.