[cfg] chore: remove redundant fields and fix typo

[JoyboyBrian]

What does this PR do?

Clean up redundant field definitions in config dataclasses and fix a typo.

• Remove duplicate profiler field from FSDPActorConfig (already defined in parent class ActorConfig at line 160)
• Remove duplicate lora field from HFModelConfig (already defined at line 86 with proper type annotation dict[str, Any])
• Fix typo in comment: constuct -> construct

Checklist Before Starting

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Test

This PR only removes redundant code and fixes a typo. No functional changes.

• profiler field: Already defined in parent class ActorConfig at line 160. FSDPActorConfig inherits from ActorConfig, so the duplicate at line 285 is unnecessary.
• lora field: Two definitions existed in HFModelConfig:
  • Line 86: lora: dict[str, Any] = field(default_factory=dict) with comment "megatron lora config" (kept)
  • Line 91: lora: dict = field(default_factory=dict) without type parameters (removed)
  • Kept the first one because it has proper type annotation and descriptive comment.

API and Usage Example

No API changes.

Design & Code Changes

• verl/workers/config/actor.py: Remove duplicate profiler field from FSDPActorConfig (inherited from ActorConfig:160)
• verl/workers/config/model.py: Remove duplicate lora field (keep line 86 with dict[str, Any], remove line 91 with dict)
• verl/workers/config/model.py: Fix typo constuct -> construct

Checklist Before Submitting

Important

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[gemini-code-assist]

Code Review

This pull request provides valuable cleanup for the configuration dataclasses. It correctly removes a redundant profiler field from FSDPActorConfig that was already inherited from its parent class. More importantly, it fixes a critical bug in HFModelConfig by removing a duplicate lora field definition, which would have caused a TypeError at import time. A minor typo in a comment is also fixed. The changes are well-contained and improve the codebase's correctness and maintainability. I have reviewed the changes and found no issues.