refactor(template): remove dead Timeout field from template structs

[lizhengfeng101]

Description

PR #474 removed the per-task timeout logic from executeReviewFilter and ReLocateComment, along with the "timeout" values in task_template.json. However, the Timeout struct fields and the copy logic were left behind as dead code.

Currently the code still:

1. Declares Timeout int on both manifestConversation and LlmConversation structs
2. Copies the (always-zero) value in resolveConversation: conv := LlmConversation{Timeout: m.Timeout}
3. Asserts on the zero value in template_test.go

Since there is no custom-template loading mechanism (templates are //go:embed-only), these fields serve no purpose.

Scope

• File: internal/config/template/template.go
  • Remove Timeout int from manifestConversation (line 57)
  • Remove Timeout int from LlmConversation (line 217)
  • Simplify resolveConversation to not copy Timeout (line 73)
• File: internal/config/template/template_test.go
  • Remove the Timeout == 0 assertion

Acceptance Criteria

• Timeout field removed from both manifestConversation and LlmConversation
• resolveConversation no longer references Timeout
• Test assertion for Timeout removed
• Tests pass (make test)
• Code check passes (make check)

Context

Discovered during review of #474. The PR intentionally left struct fields in place to keep scope minimal; this issue tracks the follow-up cleanup.

[nandini-srivastav]

Hi, I'd like to work on this - happy to remove the dead Timeout fields and the related test assertion.

[lizhengfeng101]

Hi, I'd like to work on this - happy to remove the dead Timeout fields and the related test assertion.

ok, assigned