[code-simplifier] Code quality improvements

[norrietaylor]

Applies code simplifications from the Code Simplifier analysis that failed to create a PR automatically (issue #73).

• Replace hardcoded Player tag string with a constant in Collectible.cs
• Use Mathf.Clamp instead of two-step clamp in PlayerHealth.cs
• Remove unused [SerializeField] from _currentLevelName in LevelManager.cs
• Replace magic int attack type with AttackKind enum in PlayerCombat.cs

Generated with Claude Code

[norrietaylor]

@claude[agent] resolve conflicts in this branch

[Claude]

@norrietaylor I've opened a new pull request, #155, to work on those changes. Once the pull request is ready, I'll request review from you.

[Copilot]

Pull request overview

This PR applies a set of small, mechanical code-simplification improvements across core gameplay scripts (player health/combat, level management, and collectibles) based on prior “Code Simplifier” analysis.

Changes:

• Simplifies health bounds logic by using Mathf.Clamp for both damage and healing.
• Replaces a magic-number “attack type” integer with a strongly-typed AttackKind enum while keeping the Animator-facing API as an int.
• Removes an unused serialized level-name field configuration and replaces a hardcoded "Player" tag literal with a local constant.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
Unity/Assets/Scripts/Player/PlayerHealth.cs	Uses Mathf.Clamp to enforce health bounds in a single expression for damage/heal.
Unity/Assets/Scripts/Player/PlayerCombat.cs	Introduces AttackKind enum and updates combat state tracking while preserving AttackType int for Animator.
Unity/Assets/Scripts/Levels/LevelManager.cs	Removes unused [SerializeField]/header from _currentLevelName (now set from active scene at runtime).
Unity/Assets/Scripts/Collectibles/Collectible.cs	Replaces hardcoded "Player" tag string with a class constant for maintainability.

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[norrietaylor]

@claude this branch is failing the unity test suite

[claude]

Claude finished @norrietaylor's task in 1m 44s —— View job

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Fixed Unity Test Suite Failure

• Check CI status and failure details
• Identify issue: PlayerAnimator.cs:75 calls _animator.SetInteger(ATTACK_TYPE, _combat.AttackType) — Animator.SetInteger requires an int, but AttackType now returns AttackKind (an enum) after the PR's changes, causing a compilation error
• Fix PlayerAnimator.cs to cast AttackKind to int: (int)_combat.AttackType
• Pushed fix (commit 8313106)

Root cause: The PR changed PlayerCombat.AttackType from int to AttackKind (enum), but PlayerAnimator.cs was not updated — it still passed the enum value directly to Animator.SetInteger() which expects an int. The fix adds an explicit (int) cast, which is safe since the AttackKind enum values are None=0, Punch=1, Kick=2, Stomp=3 — exactly what the Animator expects.
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