feat(ai): exclude badge/pill/tag from card-row equalization (P3 dashboard 等宽)

equalizeHorizontalSiblings (the dashboard column-equalization pass) is the same
logic as the equalizeCardRow ported in I4, except it also excludes badge/pill/tag
roles from card candidates. Add those exclusions so equalize_card_row covers both
— closing the P3 "dashboard 等宽" item.

The other two P3 items are architectural non-gaps, not ports:
- 变量 seeding: plans carry no palette (variables.rs is a deliberate no-op); the
  design-system path (design_system_to_seed_commands) already seeds variables.
- intent-modify: the Rust Design path is AGENTIC — an agent::Provider whose
  modify-level tools (update_node / batch_design / ...) handle create-vs-modify
  organically, so the 2-way Design/Chat gate suffices. TS's 3-way classify
  existed for its non-agentic routing and would be redundant here.

crates/op-orchestrator/src/role_post_pass.rs

@@ -439,7 +439,10 @@ fn size_number(node: &Value, key: &str) -> f64 {
 }
 
 /// Equalize a row of fixed-width card frames to `fill_container` so they stretch
-/// evenly (port of `equalizeCardRow`). Pure property fix — taffy then lays out.
+/// evenly (port of `equalizeCardRow` AND the near-identical
+/// `equalizeHorizontalSiblings` in design-canvas-ops.ts — the dashboard 等宽
+/// pass; the badge/pill/tag exclusions come from the latter). Pure property fix
+/// — taffy then lays out.
 fn equalize_card_row(node: &mut Value) {
     if node.get("layout").and_then(Value::as_str) != Some("horizontal") {
         return;
@@ -458,7 +461,14 @@ fn equalize_card_row(node: &mut Value) {
         .enumerate()
         .filter(|(_, c)| {
             c.get("type").and_then(Value::as_str) == Some("frame")
-                && !matches!(role_of(c), Some("divider") | Some("phone-mockup"))
+                && !matches!(
+                    role_of(c),
+                    Some("divider")
+                        | Some("phone-mockup")
+                        | Some("badge")
+                        | Some("pill")
+                        | Some("tag")
+                )
                 && size_number(c, "height") > 88.0
         })
         .map(|(i, _)| i)

crates/op-orchestrator/src/role_post_pass_tests.rs

@@ -223,6 +223,26 @@ fn card_row_left_alone_when_widths_similar() {
     assert_eq!(row["children"][0]["width"], json!(200));
 }
 
+#[test]
+fn badge_pill_tag_rows_are_not_equalized() {
+    // The dashboard-pass (equalizeHorizontalSiblings) excludes badge/pill/tag,
+    // so a row of those keeps its widths even with a low width ratio.
+    for role in ["badge", "pill", "tag"] {
+        let mut row = json!({
+            "type":"frame","layout":"horizontal","children":[
+                {"type":"frame","role":role,"width":240,"height":200,"children":[]},
+                {"type":"frame","role":role,"width":120,"height":210,"children":[]}
+            ]
+        });
+        equalize_card_row(&mut row);
+        assert_eq!(
+            row["children"][0]["width"],
+            json!(240),
+            "{role} row must not be equalized"
+        );
+    }
+}
+
 #[test]
 fn form_inputs_promoted_when_fill_sibling_present() {
     let mut form = json!({