Improvement: Excluded Space Station Capacities from Transport Cost Calculations

[IllianiBird]

Space Station Travel Rules Excerts

This PR

This PR excludes Space Station capacities (both bay and passenger) from consideration when calculating jump costs. This is done for the following reasons:

Space Stations must be fully shut down when jumping. While the rules are silent on whether this includes life support, CamOps explicitly excludes Space Stations from including their crew capacities in transport calculations. Furthermore, CamOps pg 35 does not include Space Stations in the list of 'transport units'.

[IllianiBird]

I went ahead and redone a bunch of these tests to account for use of the new getters

[IllianiBird]

All capacity getters have been replaced. HangarStatistics does not leave room for exclusion of certain unit types.

[codecov]

Codecov Report

❌ Patch coverage is 69.23077% with 36 lines in your changes missing coverage. Please review.
✅ Project coverage is 12.28%. Comparing base (cee6d1d) to head (83ea9bf).
⚠️ Report is 54 commits behind head on main.

Files with missing lines	Patch %	Lines
...hq/campaign/mission/TransportCostCalculations.java	69.23%	24 Missing and 12 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8500      +/-   ##
============================================
+ Coverage     12.25%   12.28%   +0.03%     
- Complexity     7363     7393      +30     
============================================
  Files          1286     1286              
  Lines        165097   165218     +121     
  Branches      24823    24857      +34     
============================================
+ Hits          20227    20304      +77     
- Misses       142948   142979      +31     
- Partials       1922     1935      +13     

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[Copilot]

Pull request overview

This PR implements the exclusion of Space Station capacities from transport cost calculations to comply with CamOps rules, which require Space Stations to be fully shut down when jumping. The changes introduce new helper methods to calculate bay capacities and passenger counts while filtering out Space Stations.

• Replaced direct calls to HangarStatistics methods with new local methods that filter Space Stations
• Added comprehensive test coverage with helper methods for unit creation and hangar setup
• Refactored tests to use actual Unit/Entity mocks instead of mocking HangarStatistics

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 25 comments.

File	Description
MekHQ/src/mekhq/campaign/mission/TransportCostCalculations.java	Added 10 new methods (getTotalSmallCraftBays, getTotalASFBays, etc.) that calculate transport capacities while filtering out Space Stations; updated existing methods to call these new helpers
MekHQ/unittests/mekhq/campaign/mission/TransportCostCalculationsTest.java	Refactored test setup to mock Hangar instead of HangarStatistics; added helper methods for creating test units; added test to verify Space Station filtering; updated all bay requirement tests to use new approach

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[IllianiBird]

All copilot feedback has been accounted for

[Sleet01]

LGTM