Move subscription info fetch into Go

[Goooler]

Moves the subscription information fetching and parsing from Kotlin/JVM into the Go native layer to reduce redundant network requests, reuse Go-level network stack, and reduce dependency/APK size.

Ports MetaCubeX@8a0e818.

[Copilot]

Pull request overview

This PR moves subscription metadata retrieval (e.g., subscription-userinfo and profile-update-interval headers) from the Android/Kotlin service layer into the Go native fetch pipeline, so subscription parsing happens alongside the existing Go-based profile fetch and validation.

Changes:

• Added a new FetchStatus.Action.SubscriptionInfo event and extra fields on FetchStatus to carry subscription stats and server-provided update interval.
• Updated profile import/update flows to consume the Go-reported subscription info instead of making a separate OkHttp request.
• Removed the service module’s OkHttp dependency and deleted the Kotlin-side subscription header fetch/parser utility.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
ui/profile/src/androidMain/kotlin/com/github/kr328/clash/profile/vm/PropertiesViewModel.kt	Ignores SubscriptionInfo in the progress UI so progress text/state isn’t disturbed by the new status event.
service/src/main/kotlin/com/github/kr328/clash/service/util/SubscriptionUserInfo.kt	Removes Kotlin/OkHttp-based subscription header fetching and parsing.
service/src/main/kotlin/com/github/kr328/clash/service/ProfileProcessor.kt	Captures SubscriptionInfo from Clash.fetchAndValid and persists subscription fields/update interval when importing/updating profiles.
service/src/main/kotlin/com/github/kr328/clash/service/ProfileManager.kt	Drops the additional “updateFlow” subscription refresh that previously performed a separate request.
service/build.gradle.kts	Removes OkHttp dependencies from the service module.
core/src/main/kotlin/com/github/kr328/clash/core/model/FetchStatus.kt	Extends FetchStatus with subscription fields and a new SubscriptionInfo action.
core/src/main/golang/native/config/fetch.go	Extracts subscription headers during config fetch and reports them back to Kotlin via a new SubscriptionInfo status payload.

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