fix: pass --timeout flag through to helm for sync and apply

[hristiy4n]

Summary

• Fix --timeout flag for helmfile sync which was defined but not passed to helm
• Add --timeout flag for helmfile apply which was missing

Problem

The --timeout flag for helmfile sync was added in #2148 but never passed through to the actual helm commands. The flag was parsed and stored, but silently ignored because SyncOpts.Timeout was never populated when building the options.

For helmfile apply the --timeout flag didn't exist at all.

[Copilot]

Pull request overview

This PR fixes and extends CLI timeout handling so --timeout is actually propagated into the Helm upgrade/install calls for both helmfile sync and helmfile apply.

Changes:

• Plumbs Timeout from the app config providers into state.SyncOpts for both the apply and sync execution paths.
• Adds --timeout flag support to helmfile apply (matching existing helmfile sync flag behavior).
• Adds a sync-focused regression test verifying --timeout becomes helm --timeout <Ns>.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pkg/config/apply.go	Adds Timeout to apply options and exposes it via ApplyImpl.Timeout().
pkg/app/config.go	Extends ApplyConfigProvider and SyncConfigProvider with Timeout() int.
pkg/app/app.go	Passes c.Timeout() into state.SyncOpts in both apply and sync flows.
cmd/apply.go	Introduces --timeout flag for helmfile apply.
pkg/app/app_test.go	Updates the apply test config stub to satisfy the new Timeout() interface method.
pkg/app/app_sync_test.go	Adds regression coverage ensuring sync propagates timeout into Helm flags.

[Copilot]

Pull request overview

Copilot reviewed 9 out of 9 changed files in this pull request and generated no new comments.