fix(identity): Mine includes unattributed and channel-only threads

packages/client-runtime/src/state/identity.test.ts

@@ -63,7 +63,7 @@ describe("filterPeopleForTypeahead", () => {
 });
 
 describe("threadMatchesMine", () => {
-  it("filters mine vs theirs", () => {
+  it("filters mine vs theirs when threads are person-attributed", () => {
     expect(
       threadMatchesMine({
         claimPersonId: "patroza",
@@ -87,26 +87,66 @@ describe("threadMatchesMine", () => {
     ).toBe(true);
   });
 
-  it("excludes both mine and theirs when there is no claim for the env", () => {
+  it("treats unattributed threads as mine (legacy / channel-only / identity off)", () => {
+    // No origin or participants — old threads, { channel: "desktop" } only, etc.
     expect(
       threadMatchesMine({
-        claimPersonId: null,
-        originPersonId: "patroza",
+        claimPersonId: "patroza",
+        originPersonId: null,
+        participantPersonIds: [],
         mode: "mine",
       }),
+    ).toBe(true);
+    expect(
+      threadMatchesMine({
+        claimPersonId: "patroza",
+        originPersonId: null,
+        participantPersonIds: [],
+        mode: "theirs",
+      }),
     ).toBe(false);
+    // Identity-disabled env: no claim, no person tags → Mine still shows work.
     expect(
       threadMatchesMine({
         claimPersonId: null,
-        originPersonId: "patroza",
+        originPersonId: undefined,
+        participantPersonIds: undefined,
+        mode: "mine",
+      }),
+    ).toBe(true);
+    expect(
+      threadMatchesMine({
+        claimPersonId: null,
+        originPersonId: undefined,
         mode: "theirs",
       }),
     ).toBe(false);
+  });
+
+  it("treats attributed threads without a session claim as theirs", () => {
     expect(
       threadMatchesMine({
         claimPersonId: null,
-        originPersonId: "patroza",
-        mode: "any",
+        originPersonId: "julius",
+        mode: "mine",
+      }),
+    ).toBe(false);
+    expect(
+      threadMatchesMine({
+        claimPersonId: null,
+        originPersonId: "julius",
+        mode: "theirs",
+      }),
+    ).toBe(true);
+  });
+
+  it("includes participant-only matches as mine", () => {
+    expect(
+      threadMatchesMine({
+        claimPersonId: "patroza",
+        originPersonId: "julius",
+        participantPersonIds: ["patroza"],
+        mode: "mine",
       }),
     ).toBe(true);
   });

packages/client-runtime/src/state/identity.ts

@@ -73,24 +73,45 @@ export function filterPeopleForTypeahead(
   });
 }
 
-/** Match a thread as "mine" against the session claim personId. */
+/**
+ * Match a thread for Mine / Theirs ownership filters.
+ *
+ * **Mine** includes:
+ * - threads where the session claim person appears on origin or participants
+ * - threads with **no person attribution** (no identity tags, channel-only
+ *   stamps like `{ channel: "desktop" }`, identity-disabled servers, legacy
+ *   threads) — treated as "ours" so filters stay useful offline of a map
+ *
+ * **Theirs** is only threads that have at least one person tag and do not
+ * include the claim person.
+ */
 export function threadMatchesMine(input: {
   readonly claimPersonId: string | null | undefined;
   readonly originPersonId?: string | null | undefined;
   readonly participantPersonIds?: ReadonlyArray<string> | null | undefined;
   readonly mode: "mine" | "theirs" | "any";
 }): boolean {
   if (input.mode === "any") return true;
-  const claimId = input.claimPersonId?.trim().toLowerCase() ?? "";
-  // No claim for this environment (map off, or user never signed up there):
-  // ownership is unclassifiable — hide from both Mine and Theirs. Multi-env
-  // clients with primary=smart (no map) previously used a single empty claim
-  // and treated every thread as Theirs, which made Mine look broken for t3vm.
-  if (claimId.length === 0) return false;
+
   const people = new Set<string>();
-  if (input.originPersonId) people.add(input.originPersonId.trim().toLowerCase());
+  const origin = input.originPersonId?.trim().toLowerCase() ?? "";
+  if (origin.length > 0) people.add(origin);
   for (const id of input.participantPersonIds ?? []) {
-    people.add(id.trim().toLowerCase());
+    const personId = id?.trim().toLowerCase() ?? "";
+    if (personId.length > 0) people.add(personId);
+  }
+  const unattributed = people.size === 0;
+
+  // No person tags (channel-only source, identity off, pre-attribution history).
+  if (unattributed) {
+    return input.mode === "mine";
+  }
+
+  const claimId = input.claimPersonId?.trim().toLowerCase() ?? "";
+  // Attributed threads need a claim to classify as mine; without a claim they
+  // are someone else's tags on a map-enabled env (or another person's work).
+  if (claimId.length === 0) {
+    return input.mode === "theirs";
   }
   const isMine = people.has(claimId);
   return input.mode === "mine" ? isMine : !isMine;