Fix comparison operator for distance checks

[TKTK123456]

If this PR fixes an issue, link it below. If not, delete these two lines.
Resolves #3737

Description:

Fixing the distance to make it so that structures exactly 15 tiles apart will have rail network.

Please complete the following:

• I have added screenshots for all UI updates
• I process any text displayed to the user through translateText() and I've added it to the en.json file
• I have added relevant tests to the test directory
• I confirm I have thoroughly tested these changes and take full responsibility for any bugs introduced

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tktk1234567
Display name 2TKTK1234567

[CLAassistant]

All committers have signed the CLA.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: d068ff01-8082-486c-b1bd-0b78a11d4e7a

📥 Commits

Reviewing files that changed from the base of the PR and between 01b3cbe and 81c2764.

📒 Files selected for processing (1)

• src/core/game/RailNetworkImpl.ts

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Walkthrough

Fixes an off-by-one boundary condition error in station distance checks within the railway network logic. The comparison operators are adjusted so structures placed at the minimum allowed distance (15 tiles) can now form railroad connections, aligning placement and connection rules.

Changes

Cohort / File(s)	Summary
Rail Network Distance Check Fix src/core/game/RailNetworkImpl.ts	Updated boundary comparisons from <=/> to </>= in two distance validation loops to treat stations at exactly trainStationMinRange() as eligible for connection, fixing mismatch with structure placement rules.

Estimated Code Review Effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

Rails now reach where distance is exact,
A simple flip of operators brought it back,
Fifteen tiles no longer fall between,
Connections bloom where once they weren't seen,
One fix, two lines, a network complete. 🚂✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: fixing comparison operators used in distance checks.
Description check	✅ Passed	The description directly relates to the changeset, explaining the fix for structures at exactly 15 tiles distance forming rail connections.
Linked Issues check	✅ Passed	The code changes in RailNetworkImpl.ts directly address issue #3737 by adjusting the two comparison operators to align structure placement with rail connection logic.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to fixing the distance comparison operators in RailNetworkImpl.ts as specified in issue #3737.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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