Fix naming inconsistency: TargetBotCore → TargetCore

[Copilot]

The module is named TargetCore but was referenced as TargetBotCore in 11 locations across comments and documentation.

Changes:

• Code comments (targetbot/target.lua, targetbot/creature_attack.lua): Updated references in DRY principle comments and utility function documentation
• Documentation (docs/TARGETBOT.md, docs/PERFORMANCE.md, README.md, ROADMAP.md): Updated section headings, code examples, and feature tables

-- Before
-- Use TargetBotCore if available (DRY principle)
TargetBotCore.Geometry = { ... }

-- After  
-- Use TargetCore if available (DRY principle)
TargetCore.Geometry = { ... }

No functional changes—documentation and comment alignment only.

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[Copilot]

Pull request overview

This PR corrects a naming inconsistency where the module TargetCore was incorrectly referenced as TargetBotCore in 11 locations across code comments and documentation files.

• Updates all references from TargetBotCore to TargetCore to match the actual module name defined in targetbot/core.lua
• Affects only comments and documentation—no functional code changes
• Improves code clarity and consistency across the codebase

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
targetbot/target.lua	Updated 2 comment references in DRY principle comments and distance calculation utility
targetbot/creature_attack.lua	Updated 4 comment references in header, wave avoidance system, and utility function documentation
docs/TARGETBOT.md	Updated feature list bullet point describing pure function scoring
docs/PERFORMANCE.md	Updated section heading and code example showing geometry calculations
ROADMAP.md	Updated feature checklist item for TargetCore module
README.md	Updated design patterns table entry for pure functions

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Review Summary: All changes are accurate and consistent. The PR successfully corrects all 11 instances of the incorrect TargetBotCore name to the correct TargetCore module name. No functional code was modified—only comments and documentation were updated. No issues found.

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