Increase default spawn immunity 5s => 10s

[evanpelle]

Description:

In 1v1s some players were getting spawned sniped if they didn't expand fast enough.

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

Please put your Discord username so you can be contacted if a bug or regression is found:

evan

[CLAassistant]

All committers have signed the CLA.

[coderabbitai]

Walkthrough

Refactors spawn immunity threshold into a configurable value via defaultSpawnImmunityDuration(), updates client timer to use it, and shortens matchmaking polling delay from 10000 ms to 7000 ms.

Changes

Cohort / File(s)	Summary
Configuration interface & default src/core/configuration/Config.ts, src/core/configuration/DefaultConfig.ts	Adds defaultSpawnImmunityDuration(): Tick to Config. DefaultConfig implements it (returns 100 ticks = 10s) and spawnImmunityDuration() now falls back to this method instead of a hard-coded value.
Client immunity timer src/client/graphics/layers/ImmunityTimer.ts	Replaces hard-coded threshold (50) with dynamic defaultSpawnImmunityDuration() and keeps existing early-return when using default immunity. Adds clarifying comment.
Server matchmaking timing src/server/Worker.ts	Reduces matchmaking polling delay in startMatchmakingPolling() from 10000 ms to 7000 ms.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🛡️ A timer once fixed, now learns to bend,

Configured softly, defaults to defend.
Ten ticks of mercy, clear and bright,
Matchmaking quicker — ready for the fight.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: increasing the default spawn immunity duration from 5 seconds to 10 seconds, which is the primary modification across the configuration and immunity timer files.
Description check	✅ Passed	The description explains the business reason for the change (preventing spawn-sniping in 1v1 matches) and relates directly to the technical changes made in the pull request.

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The merge-base changed after approval.