Filter history: shared history screen and ViewModel

[AdamGrzybkowski]

Part of WOOMOB-3326 — WOOMOB-3825

Description

Second PR in the filter history stack. Adds the shared UI, on top of the foundation from #16420. Still behind the FILTER_HISTORY flag and not reachable from any menu yet (wired up in the order/product PRs).

• New reusable Filter History screen in Jetpack Compose (hosted in a Fragment, added to both filter nav graphs), mirroring iOS FilterHistoryView: a "Recent" list, single-select + Apply/Cancel, swipe-to-delete, "Clear History" with a confirmation dialog, and an empty state.
• A generic FilterHistoryViewModel driven by FilterHistoryRepository, taking a source (orders/products) argument and returning the chosen SavedFilter as a nav result.
• The 4 filter-history Tracks events (filter_history_button_tapped, _past_filter_applied, _past_filter_removed, _cleared) with a source property, matching iOS.

Test Steps

Not reachable in the app yet. CI green is the bar:

• ./gradlew :WooCommerce:testWasabiDebugUnitTest --tests "*FilterHistoryViewModelTest*"

Stacked PRs

PR 2 of 4. Base branch: issue/WOOMOB-3824-filter-history-foundation (#16420). Review/merge #16420 first.

• I have considered if this change warrants release notes — none needed (behind feature flag, not user-facing).

[dangermattic]

	1 Warning
⚠️	This PR is larger than 300 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

	1 Message
📖	This PR contains changes to Tracks-related logic. Please ensure (author and reviewer) the following are completed: The tracks events must be validated in the Tracks system. Verify the internal Tracks spreadsheet has also been updated. Please consider registering any new events. The PR must be assigned the category: tracks label.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WooCommerce Android by scanning the QR code below to install the corresponding build.

	App Name	WooCommerce Android
	Platform	📱 Mobile
	Flavor	Jalapeno
	Build Type	Debug
	Build Number	778
	Version	25.4-rc-1
	Application ID	com.woocommerce.android.prealpha
	Commit	4eca5d4
	Installation URL	7baakg41rmst8

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[claude]

AI Code Review - Found 1 potential issue (a minor nit).

This is well-structured foundation work for the shared Filter History screen. It correctly follows the store-app MVVM conventions (ScopedViewModel, StateFlow via combine/toStateFlow, triggerEvent/MultiLiveEvent, Compose-in-Fragment), the swipe-to-delete + root-level nav-action patterns match existing code, SavedFilter is correctly made @Parcelize to travel as an ExitWithResult nav result, and the ViewModel is thoroughly unit-tested. No correctness, security, or backwards-compatibility concerns found.

PR housekeeping

• Unused string resource filter_history_entry_content_description is added in strings.xml but not referenced anywhere in the diff; either wire it up (e.g. as the row's content description) or drop it to avoid a lint warning.
• Applied repo AGENTS.md/CLAUDE.md guidance: verified this is store-management (not POS) code and validated against the store MVVM/Compose patterns.

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