refactor(search): unify dropdown filtering on the shared ranked matcher

Branch, project, agent, model, provider, stash, SSH-host, skill-catalog
and archive filters each had their own toLowerCase().includes (or no
ordering at all); the git branch and gitmoji pickers also let cmdk
re-filter and reorder on top of the manual filter, silently dropping
rows. All of them now go through rankByQuery/matchesRankQuery: results
are relevance-ordered, multi-word queries match in any order, matching
ignores punctuation, and cmdk filtering is disabled where the ranked
list is already final. rankBranchesForQuery keeps relevance order
instead of re-sorting matches alphabetically; the model picker now also
matches model ids.

packages/ui/src/components/views/git/BranchIntegrationSection.tsx

@@ -26,6 +26,7 @@ import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip
 import { Icon } from "@/components/icon/Icon";
 import { cn } from '@/lib/utils';
 import { dropdownTriggerVariants } from '@/components/ui/dropdown-trigger';
+import { rankByQuery } from '@/lib/search/fuzzySearch';
 import { useI18n } from '@/lib/i18n';
 
 type OperationType = 'merge' | 'rebase';
@@ -94,22 +95,19 @@ export const BranchIntegrationSection: React.FC<BranchIntegrationSectionProps> =
 
   // Filter branches based on search
   const filteredLocal = React.useMemo(() => {
-    const term = branchSearch.toLowerCase();
     const remoteBranchNames = new Set(
       remoteBranches
         .map((branch) => branch.slice(branch.indexOf('/') + 1))
         .filter(Boolean)
     );
-    const filtered = localBranches.filter((branch) => branch !== currentBranch && !remoteBranchNames.has(branch));
-    if (!term) return filtered;
-    return filtered.filter((b) => b.toLowerCase().includes(term));
+    const candidates = localBranches.filter((branch) => branch !== currentBranch && !remoteBranchNames.has(branch));
+    return rankByQuery(candidates, branchSearch, (branch) => [branch]);
   }, [branchSearch, localBranches, currentBranch, remoteBranches]);
 
-  const filteredRemote = React.useMemo(() => {
-    const term = branchSearch.toLowerCase();
-    if (!term) return remoteBranches;
-    return remoteBranches.filter((b) => b.toLowerCase().includes(term));
-  }, [branchSearch, remoteBranches]);
+  const filteredRemote = React.useMemo(
+    () => rankByQuery(remoteBranches, branchSearch, (branch) => [branch]),
+    [branchSearch, remoteBranches]
+  );
 
   const resolveDefaultBranch = React.useCallback(() => {
     if (!defaultTargetBranch) return null;
@@ -321,7 +319,8 @@ export const BranchIntegrationSection: React.FC<BranchIntegrationSectionProps> =
             sideOffset={6}
             className="w-[var(--anchor-width)] p-0 max-h-[min(var(--available-height),24rem)] flex flex-col overflow-hidden"
           >
-            <Command className="h-full min-h-0">
+            {/* rankByQuery owns filtering/ordering; cmdk must not re-filter. */}
+            <Command className="h-full min-h-0" shouldFilter={false}>
               <CommandInput
                 ref={searchInputRef}
                 placeholder={t('gitView.branch.searchPlaceholder')}

packages/ui/src/components/views/git/BranchSelector.tsx

@@ -17,6 +17,7 @@ import {
 import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip';
 import { Icon } from "@/components/icon/Icon";
 import type { GitRemote } from '@/lib/api/types';
+import { rankByQuery } from '@/lib/search/fuzzySearch';
 import { useI18n } from '@/lib/i18n';
 
 interface BranchInfo {
@@ -78,17 +79,15 @@ export const BranchSelector: React.FC<BranchSelectorProps> = ({
     [newBranchName]
   );
 
-  const filteredLocal = React.useMemo(() => {
-    const term = search.toLowerCase();
-    if (!term) return localBranches;
-    return localBranches.filter((b) => b.toLowerCase().includes(term));
-  }, [search, localBranches]);
+  const filteredLocal = React.useMemo(
+    () => rankByQuery(localBranches, search, (branch) => [branch]),
+    [search, localBranches]
+  );
 
-  const filteredRemote = React.useMemo(() => {
-    const term = search.toLowerCase();
-    if (!term) return remoteBranches;
-    return remoteBranches.filter((b) => b.toLowerCase().includes(term));
-  }, [search, remoteBranches]);
+  const filteredRemote = React.useMemo(
+    () => rankByQuery(remoteBranches, search, (branch) => [branch]),
+    [search, remoteBranches]
+  );
 
   const handleCheckout = (branch: string) => {
     if (branch === currentBranch) {
@@ -184,7 +183,9 @@ export const BranchSelector: React.FC<BranchSelectorProps> = ({
       </Tooltip>
 
       <DropdownMenuContent align="start" className="w-72 p-0 max-h-[60vh] flex flex-col">
-        <Command className="h-full min-h-0">
+        {/* Filtering and ordering are owned by rankByQuery above; cmdk's own
+            filter would re-filter and reorder the already-ranked rows. */}
+        <Command className="h-full min-h-0" shouldFilter={false}>
           <CommandInput
             placeholder={t('gitView.branch.searchPlaceholder')}
             value={search}

packages/ui/src/components/views/git/IntegrateCommitsSection.tsx

@@ -19,6 +19,7 @@ import { Icon } from "@/components/icon/Icon";
 import { useSessionUIStore } from '@/sync/session-ui-store';
 import { useInputStore } from '@/sync/input-store';
 import { useUIStore } from '@/stores/useUIStore';
+import { rankByQuery } from '@/lib/search/fuzzySearch';
 import { getGitCommitSummaries } from '@/lib/gitApi';
 import { renderMagicPrompt } from '@/lib/magicPrompts';
 import {
@@ -66,8 +67,14 @@ export const IntegrateCommitsSection: React.FC<{
   const currentSessionId = useSessionUIStore((s) => s.currentSessionId);
   const setActiveMainTab = useUIStore((s) => s.setActiveMainTab);
   const [branchDropdownOpen, setBranchDropdownOpen] = React.useState(false);
+  const [branchSearch, setBranchSearch] = React.useState('');
   const searchInputRef = React.useRef<HTMLInputElement>(null);
 
+  const filteredBranches = React.useMemo(
+    () => rankByQuery(localBranches, branchSearch, (branch) => [branch]),
+    [localBranches, branchSearch]
+  );
+
   const [targetBranch, setTargetBranch] = React.useState<string>(defaultTargetBranch);
   React.useEffect(() => {
     setTargetBranch(defaultTargetBranch);
@@ -380,10 +387,13 @@ export const IntegrateCommitsSection: React.FC<{
                 align="end"
                 className="w-72 p-0 max-h-[var(--available-height)] flex flex-col overflow-hidden"
               >
-                <Command className="h-full min-h-0">
+                {/* rankByQuery owns filtering/ordering; cmdk must not re-filter. */}
+                <Command className="h-full min-h-0" shouldFilter={false}>
                   <CommandInput
                     ref={searchInputRef}
                     placeholder={t('gitView.branch.searchPlaceholder')}
+                    value={branchSearch}
+                    onValueChange={setBranchSearch}
                     onKeyDown={(event) => event.stopPropagation()}
                   />
                   <CommandList
@@ -393,7 +403,7 @@ export const IntegrateCommitsSection: React.FC<{
                   >
                     <CommandEmpty>{t('gitView.branch.empty')}</CommandEmpty>
                     <CommandGroup heading={t('gitView.branch.localBranches')}>
-                      {localBranches.map((branch) => (
+                      {filteredBranches.map((branch) => (
                         <CommandItem
                           key={branch}
                           value={branch}
@@ -401,6 +411,7 @@ export const IntegrateCommitsSection: React.FC<{
                             setTargetBranch(branch);
                             persistTarget(branch);
                             setBranchDropdownOpen(false);
+                            setBranchSearch('');
                           }}
                         >
                           {branch}

packages/ui/src/components/views/git/StashesDialog.tsx

@@ -1,3 +1,4 @@
+import { rankByQuery } from '@/lib/search/fuzzySearch';
 import React from 'react';
 import { Dialog, DialogContent, DialogDescription, DialogHeader, DialogTitle } from '@/components/ui/dialog';
 import { Button } from '@/components/ui/button';
@@ -69,11 +70,10 @@ export const StashesDialog: React.FC<StashesDialogProps> = ({
     };
   }, [directory, open, stashes]);
 
-  const filtered = React.useMemo(() => {
-    const normalized = query.trim().toLowerCase();
-    if (!normalized) return stashes;
-    return stashes.filter((stash) => `${stash.ref} ${stash.message} ${stash.relativeTime}`.toLowerCase().includes(normalized));
-  }, [query, stashes]);
+  const filtered = React.useMemo(
+    () => rankByQuery(stashes, query, (stash) => [stash.message, stash.ref, stash.relativeTime]),
+    [query, stashes],
+  );
 
   const refreshAfterChange = React.useCallback(async (change?: { affectsIndex?: boolean }) => {
     await load();