TaCZ Scope Overhaul

Added

• Added improved terrain issue detection with detailed failure reasons and conflicting mod identification in chat and logs.
• Added clearer shader patch failure warnings in chat, including the shader pack name, error details, and reporting instructions.

Fixed/Changed

• Fixed Complementary shader compilation by only injecting textureGather helpers when required by the shader pack.
• Updated shader failure warnings to display once per session and wait until the player enters a world.