feat(inbox): add "Any" option to Source and Priority filters

The inbox Source and Priority filter popovers had no explicit way to go
back to "no filter" — you had to manually unselect each choice. Add an
"Any" row at the top of each popover that is checked when nothing else is
selected and clears that filter when clicked. Unselecting the last option
already collapses to the same empty ("Any") state.

Generated-By: PostHog Code
Task-Id: 97aa95fe-d9a3-4651-aa9b-9f636fc84832

Author: pauldambra

packages/ui/src/features/inbox/components/InboxSearchFilterBar.tsx

@@ -40,8 +40,14 @@ export function InboxSearchFilterBar({
   const toggleSourceProduct = useInboxSignalsFilterStore(
     (s) => s.toggleSourceProduct,
   );
+  const clearSourceProductFilter = useInboxSignalsFilterStore(
+    (s) => s.clearSourceProductFilter,
+  );
   const priorityFilter = useInboxSignalsFilterStore((s) => s.priorityFilter);
   const togglePriority = useInboxSignalsFilterStore((s) => s.togglePriority);
+  const clearPriorityFilter = useInboxSignalsFilterStore(
+    (s) => s.clearPriorityFilter,
+  );
 
   const activeSort = INBOX_SORT_OPTIONS.find(
     (option) =>
@@ -73,6 +79,11 @@ export function InboxSearchFilterBar({
         active={sourceProductFilter.length > 0}
       >
         <Flex direction="column" gap="0">
+          <InboxFilterAnyItem
+            label="Any"
+            active={sourceProductFilter.length === 0}
+            onClick={clearSourceProductFilter}
+          />
           {INBOX_SOURCE_OPTIONS.map((option) => {
             const isActive = sourceProductFilter.includes(option.value);
             return (
@@ -132,6 +143,11 @@ export function InboxSearchFilterBar({
         active={priorityFilter.length > 0}
       >
         <Flex direction="column" gap="0">
+          <InboxFilterAnyItem
+            label="Any"
+            active={priorityFilter.length === 0}
+            onClick={clearPriorityFilter}
+          />
           {INBOX_PRIORITY_OPTIONS.map((option) => {
             const isActive = priorityFilter.includes(option.value);
             return (
@@ -160,6 +176,25 @@ export function InboxSearchFilterBar({
   );
 }
 
+function InboxFilterAnyItem({
+  label,
+  active,
+  onClick,
+}: {
+  label: string;
+  active: boolean;
+  onClick: () => void;
+}) {
+  return (
+    <button type="button" className={FILTER_ITEM_CLASS} onClick={onClick}>
+      <span className="truncate">{label}</span>
+      {active ? (
+        <CheckIcon size={12} className="shrink-0 text-gray-12" />
+      ) : null}
+    </button>
+  );
+}
+
 function InboxFilterPopover({
   label,
   value,

packages/ui/src/features/inbox/stores/inboxSignalsFilterStore.test.ts

@@ -71,6 +71,34 @@ describe("inboxSignalsFilterStore", () => {
     ]);
   });
 
+  it("clearPriorityFilter resets priorities back to Any (empty)", () => {
+    useInboxSignalsFilterStore.getState().setPriorityFilter(["P0", "P1"]);
+
+    useInboxSignalsFilterStore.getState().clearPriorityFilter();
+
+    expect(useInboxSignalsFilterStore.getState().priorityFilter).toEqual([]);
+  });
+
+  it("clearSourceProductFilter resets sources back to Any (empty)", () => {
+    useInboxSignalsFilterStore.getState().toggleSourceProduct("github");
+    useInboxSignalsFilterStore.getState().toggleSourceProduct("linear");
+
+    useInboxSignalsFilterStore.getState().clearSourceProductFilter();
+
+    expect(useInboxSignalsFilterStore.getState().sourceProductFilter).toEqual(
+      [],
+    );
+  });
+
+  it("toggling off the last source is equivalent to Any (empty)", () => {
+    useInboxSignalsFilterStore.getState().toggleSourceProduct("github");
+    useInboxSignalsFilterStore.getState().toggleSourceProduct("github");
+
+    expect(useInboxSignalsFilterStore.getState().sourceProductFilter).toEqual(
+      [],
+    );
+  });
+
   it("setPriorityFilter de-duplicates priorities", () => {
     useInboxSignalsFilterStore.getState().setPriorityFilter(["P0", "P1", "P0"]);
 

packages/ui/src/features/inbox/stores/inboxSignalsFilterStore.ts

@@ -31,6 +31,10 @@ interface InboxSignalsFilterActions {
   toggleSourceProduct: (source: SourceProduct) => void;
   togglePriority: (priority: SignalReportPriority) => void;
   setPriorityFilter: (priorities: SignalReportPriority[]) => void;
+  /** Clear the source filter back to "Any" (empty = all sources). */
+  clearSourceProductFilter: () => void;
+  /** Clear the priority filter back to "Any" (empty = all priorities). */
+  clearPriorityFilter: () => void;
   /** Reset all filters when a deep link arrives so the linked report isn't hidden. */
   resetFilters: () => void;
 }
@@ -74,6 +78,8 @@ export const useInboxSignalsFilterStore = create<InboxSignalsFilterStore>()(
         set({
           priorityFilter: Array.from(new Set(priorities)),
         }),
+      clearSourceProductFilter: () => set({ sourceProductFilter: [] }),
+      clearPriorityFilter: () => set({ priorityFilter: [] }),
       resetFilters: () =>
         set({
           searchQuery: "",