Remove unused UI and uncommitted injections; inject services in drop handler

Remove unused UI_STATE and UNCOMMITTED_SERVICE injections from
BranchList.svelte and instead inject them directly where needed in
dropHandler.ts. This cleans up unused imports and simplifies component
props by moving the service injections into StartCommitDzHandler,
ensuring the drop handler has direct access to uiState and
uncommittedService without passing them through the BranchList
component.

Author: mtsgrd

apps/desktop/src/components/BranchList.svelte

@@ -20,12 +20,10 @@
 	import { REORDER_DROPZONE_FACTORY } from "$lib/dragging/stackingReorderDropzoneManager";
 	import { DEFAULT_FORGE_FACTORY } from "$lib/forge/forgeFactory.svelte";
 	import { createBranchSelection } from "$lib/selection/key";
-	import { UNCOMMITTED_SERVICE } from "$lib/selection/uncommittedService.svelte";
 	import { getStackContext } from "$lib/stack/stackController.svelte";
 	import { type BranchDetails } from "$lib/stacks/stack";
 	import { STACK_SERVICE } from "$lib/stacks/stackService.svelte";
 	import { combineResults } from "$lib/state/helpers";
-	import { UI_STATE } from "$lib/state/uiState.svelte";
 	import { URL_SERVICE } from "$lib/utils/url";
 	import { ensureValue } from "$lib/utils/validation";
 	import { inject } from "@gitbutler/core/context";
@@ -40,15 +38,11 @@
 	const { branches }: Props = $props();
 
 	const controller = getStackContext();
-	const uiState = inject(UI_STATE);
 	const stackService = inject(STACK_SERVICE);
 	const forge = inject(DEFAULT_FORGE_FACTORY);
 	const urlService = inject(URL_SERVICE);
 	const baseBranchService = inject(BASE_BRANCH_SERVICE);
 	const claudeCodeService = inject(CLAUDE_CODE_SERVICE);
-	const uncommittedService = inject(UNCOMMITTED_SERVICE);
-
-	// Reactive aliases for template readability (passed to leaf components)
 	const projectId = $derived(controller.projectId);
 	const stackId = $derived(controller.stackId);
 	const laneId = $derived(controller.laneId);
@@ -142,13 +136,7 @@
 				{@const codegenQuery = stackId
 					? claudeCodeService.messages({ projectId, stackId })
 					: undefined}
-				{@const startCommittingDz = new StartCommitDzHandler(
-					uiState,
-					uncommittedService,
-					projectId,
-					stackId,
-					branchName,
-				)}
+				{@const startCommittingDz = new StartCommitDzHandler(projectId, stackId, branchName)}
 				{#if stackId}
 					<BranchInsertion
 						{projectId}

apps/desktop/src/lib/branches/dropHandler.ts

@@ -1,10 +1,11 @@
 import { FileChangeDropData, FolderChangeDropData, HunkDropDataV3 } from "$lib/dragging/draggables";
 import { updateStackPrs } from "$lib/forge/shared/prFooter";
+import { UNCOMMITTED_SERVICE } from "$lib/selection/uncommittedService.svelte";
+import { UI_STATE } from "$lib/state/uiState.svelte";
+import { inject } from "@gitbutler/core/context";
 import type { DropzoneHandler } from "$lib/dragging/handler";
 import type { ForgePrService } from "$lib/forge/interface/forgePrService";
-import type { UncommittedService } from "$lib/selection/uncommittedService.svelte";
 import type { StackService } from "$lib/stacks/stackService.svelte";
-import type { UiState } from "$lib/state/uiState.svelte";
 
 export class BranchDropData {
 	constructor(
@@ -67,9 +68,10 @@ export class MoveBranchDzHandler implements DropzoneHandler {
 }
 
 export class StartCommitDzHandler implements DropzoneHandler {
+	private readonly uiState = inject(UI_STATE);
+	private readonly uncommittedService = inject(UNCOMMITTED_SERVICE);
+
 	constructor(
-		private readonly uiState: UiState,
-		private readonly uncommittedService: UncommittedService,
 		private readonly projectId: string,
 		private readonly stackId: string | undefined,
 		private readonly branchName: string,