refactor(admin): migrate dropdowns to clickOutside action

Updated components to use the new clickOutside action instead of manual
event listener management:
- ProjectListItem: Add clickOutside action and dropdown coordination
- AdminSegmentedController: Replace $effect with clickOutside action
- BubbleTextStyleMenu: Simplify click-outside handling
- BubbleColorPicker: Simplify click-outside handling
- Posts/Projects pages: Remove redundant page-level click handlers

The clickOutside action provides a cleaner, more maintainable way to
handle click-outside behavior with proper lifecycle management.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/lib/components/admin/AdminSegmentedController.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { page } from '$app/stores'
 	import BaseSegmentedController from './BaseSegmentedController.svelte'
+	import { clickOutside } from '$lib/actions/clickOutside'
 
 	const currentPath = $derived($page.url.pathname)
 
@@ -34,20 +35,9 @@
 						: ''
 	)
 
-	// Close dropdown when clicking outside
-	$effect(() => {
-		function handleClickOutside(e: MouseEvent) {
-			const target = e.target as HTMLElement
-			if (!target.closest('.dropdown-container')) {
+	function handleClickOutside() {
 		showDropdown = false
 	}
-		}
-
-		if (showDropdown) {
-			document.addEventListener('click', handleClickOutside)
-			return () => document.removeEventListener('click', handleClickOutside)
-		}
-	})
 </script>
 
 <nav class="admin-segmented-controller">
@@ -66,7 +56,11 @@
 		{/snippet}
 	</BaseSegmentedController>
 
-	<div class="dropdown-container">
+	<div
+		class="dropdown-container"
+		use:clickOutside={{ enabled: showDropdown }}
+		on:clickoutside={handleClickOutside}
+	>
 		<button
 			class="dropdown-trigger"
 			onclick={() => (showDropdown = !showDropdown)}

src/lib/components/admin/ProjectListItem.svelte

@@ -2,6 +2,7 @@
 	import { goto } from '$app/navigation'
 	import { createEventDispatcher, onMount } from 'svelte'
 	import AdminByline from './AdminByline.svelte'
+	import { clickOutside } from '$lib/actions/clickOutside'
 
 	import type { AdminProject } from '$lib/types/admin'
 
@@ -48,6 +49,10 @@
 
 	function handleToggleDropdown(event: MouseEvent) {
 		event.stopPropagation()
+		// Close all other dropdowns before toggling this one
+		if (!isDropdownOpen) {
+			document.dispatchEvent(new CustomEvent('closeDropdowns'))
+		}
 		isDropdownOpen = !isDropdownOpen
 	}
 
@@ -63,6 +68,10 @@
 		dispatch('delete', { project })
 	}
 
+	function handleClickOutside() {
+		isDropdownOpen = false
+	}
+
 	onMount(() => {
 		function handleCloseDropdowns() {
 			isDropdownOpen = false
@@ -99,7 +108,11 @@
 		/>
 	</div>
 
-	<div class="dropdown-container">
+	<div
+		class="dropdown-container"
+		use:clickOutside={{ enabled: isDropdownOpen }}
+		on:clickoutside={handleClickOutside}
+	>
 		<button
 			class="action-button"
 			type="button"

src/lib/components/admin/composer/BubbleColorPicker.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import type { Editor } from '@tiptap/core'
 	import ColorPicker, { ChromeVariant } from 'svelte-awesome-color-picker'
+	import { clickOutside } from '$lib/actions/clickOutside'
 
 	interface Props {
 		editor: Editor
@@ -97,30 +98,10 @@
 		applyColor(color)
 		onClose()
 	}
-
-	function handleClickOutside(e: MouseEvent) {
-		if (isOpen) {
-			// Check if click is inside the color picker popup
-			const pickerElement = document.querySelector('.bubble-color-picker')
-			if (pickerElement && !pickerElement.contains(e.target as Node)) {
-				onClose()
-			}
-		}
-	}
-
-	$effect(() => {
-		if (isOpen) {
-			// Add a small delay to prevent immediate closing
-			setTimeout(() => {
-				document.addEventListener('click', handleClickOutside)
-			}, 10)
-			return () => document.removeEventListener('click', handleClickOutside)
-		}
-	})
 </script>
 
 {#if isOpen}
-	<div class="bubble-color-picker">
+	<div class="bubble-color-picker" use:clickOutside on:clickoutside={onClose}>
 		<div class="color-picker-header">
 			<span>{mode === 'text' ? 'Text Color' : 'Highlight Color'}</span>
 			<button class="remove-color-btn" onclick={removeColor}> Remove </button>

src/lib/components/admin/composer/BubbleTextStyleMenu.svelte

@@ -1,5 +1,6 @@
 <script lang="ts">
 	import type { Editor } from '@tiptap/core'
+	import { clickOutside } from '$lib/actions/clickOutside'
 
 	interface Props {
 		editor: Editor
@@ -67,29 +68,10 @@
 		action()
 		onClose()
 	}
-
-	function handleClickOutside(e: MouseEvent) {
-		if (isOpen) {
-			const menu = e.currentTarget as HTMLElement
-			if (!menu?.contains(e.target as Node)) {
-				onClose()
-			}
-		}
-	}
-
-	$effect(() => {
-		if (isOpen) {
-			// Small delay to prevent immediate closing
-			setTimeout(() => {
-				document.addEventListener('click', handleClickOutside)
-			}, 10)
-			return () => document.removeEventListener('click', handleClickOutside)
-		}
-	})
 </script>
 
 {#if isOpen}
-	<div class="bubble-text-style-menu">
+	<div class="bubble-text-style-menu" use:clickOutside on:clickoutside={onClose}>
 		{#each textStyles as style}
 			<button
 				class="text-style-option"

src/routes/admin/posts/+page.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { onMount } from 'svelte'
 	import { goto, invalidate } from '$app/navigation'
 	import AdminPage from '$lib/components/admin/AdminPage.svelte'
 	import AdminHeader from '$lib/components/admin/AdminHeader.svelte'
@@ -68,18 +67,6 @@ const statusFilterOptions = [
 		{ value: 'status-draft', label: 'Draft first' }
 	]
 
-	onMount(() => {
-		document.addEventListener('click', handleOutsideClick)
-		return () => document.removeEventListener('click', handleOutsideClick)
-	})
-
-	function handleOutsideClick(event: MouseEvent) {
-		const target = event.target as HTMLElement
-		if (!target.closest('.dropdown-container')) {
-			document.dispatchEvent(new CustomEvent('closeDropdowns'))
-		}
-	}
-
 	function handleNewEssay() {
 		goto('/admin/posts/new?type=essay')
 	}

src/routes/admin/projects/+page.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-	import { onMount } from 'svelte'
 	import { goto } from '$app/navigation'
 	import AdminPage from '$lib/components/admin/AdminPage.svelte'
 	import AdminHeader from '$lib/components/admin/AdminHeader.svelte'
@@ -70,18 +69,6 @@
 		{ value: 'status-draft', label: 'Draft first' }
 	]
 
-	onMount(() => {
-		document.addEventListener('click', handleOutsideClick)
-		return () => document.removeEventListener('click', handleOutsideClick)
-	})
-
-	function handleOutsideClick(event: MouseEvent) {
-		const target = event.target as HTMLElement
-		if (!target.closest('.dropdown-container')) {
-			document.dispatchEvent(new CustomEvent('closeDropdowns'))
-		}
-	}
-
 	function handleEdit(event: CustomEvent<{ project: AdminProject }>) {
 		goto(`/admin/projects/${event.detail.project.id}/edit`)
 	}