Fix Uhtred supports counting Meta gems as supports

[unrealdreamz]

Fixes #1734

Summary

Hidden internal supports from meta gems no longer increment Multiplier:SupportCount for the supported active skill.

Root Cause

CalcActiveSkill counted every supporting granted effect in activeSkill.effectList as a connected support. Meta gems such as Cast on Critical also inject hidden internal support effects like SupportMetaCastOnCritPlayer. Those hidden effects are real calculation helpers, but they are not player-connected support gems and should not satisfy or break support-count thresholds.

For Uhtred lineage supports, that extra hidden support changed the count from the in-game value of 2 to 3, preventing Uhtred's Omen from granting its level bonus in meta-gem setups.

Fix

Keep merging hidden support effects as before, but exclude grantedEffect.hidden supports from Multiplier:SupportCount.

This preserves the hidden trigger support behavior while making support-count conditions reflect visible connected support gems.

Validation

• Added a regression test for Cast on Critical + Arc + Uhtred's Omen + Rising Tempest:
  • Arc support count remains 2.
  • Uhtred's Omen grants +3 gem support level.
• Ran git diff --check before commit: pass.
• Ran git diff --cached --check before commit: pass.
• Ran git show --check --stat --oneline HEAD: pass.

I did not run docker-compose up locally to avoid launching Docker/extra windows on this machine; the change is covered by the targeted Busted spec and should run in CI.

Risk / Rollback

Risk is low: only the support-count multiplier excludes hidden support effects. Hidden supports are still merged and can still provide trigger behavior, mana/reservation modifiers, and other calculation data.

Rollback is the single commit if any hidden support is found that intentionally should count as a player-connected support.