fix(stats): say why each adapter is Skipped

Skipped adapters all got the same 'no real chat activity' line, even when they had recorded events. Split them into two groups: adapters with zero events, and adapters with some activity that is below the real-usage threshold. Refs #1254

Author: Micahscodingjourney

src/session/analytics.ts

@@ -2762,6 +2762,9 @@ function renderConversation(c: ConversationStats, conversationUsd: string, contr
  *  2. Filtered adapters (`isReal=false` but with at least one .db on disk)
  *     become a single "Skipped (N): name1, name2, ..." disclosure line so
  *     the user sees that fixtures/probes were intentionally hidden.
+ *     Below that line, adapters with zero events are listed under
+ *     "No real chat activity", and adapters with some events are listed
+ *     under "Some activity, but below the real-usage threshold".
  *
  * Returns [] when `multiAdapter` is undefined OR when there are no real
  * adapters AND nothing skipped — keeping the renderer additive (Slice 3.5).
@@ -2806,9 +2809,17 @@ function renderMultiAdapter(multiAdapter: MultiAdapterLifetimeStats | undefined)
   if (skipped.length > 0) {
     if (real.length > 0) out.push("");
     const names = skipped.map((a) => adapterLabel(a.name)).join(", ");
+    const empty = skipped.filter((a) => a.eventCount === 0);
+    const belowThreshold = skipped.filter((a) => a.eventCount > 0);
     out.push(`  Skipped (${skipped.length}): ${names}`);
-    out.push("  These adapters have DBs on disk but only test fixtures, dev skeletons,");
-    out.push("  or detection probes — no real chat activity.");
+    if (empty.length > 0) {
+      const emptyNames = empty.map((a) => adapterLabel(a.name)).join(", ");
+      out.push(`  No real chat activity: ${emptyNames}`);
+    }
+    if (belowThreshold.length > 0) {
+      const belowNames = belowThreshold.map((a) => adapterLabel(a.name)).join(", ");
+      out.push(`  Some activity, but below the real-usage threshold: ${belowNames}`);
+    }
   }
 
   return out;

tests/session/multi-adapter-render.test.ts

@@ -16,8 +16,8 @@
  *     JetBrains            —     8.6 MB          8.6 MB
  *
  *     Skipped (7): Cursor, Codex CLI, Pi, Kiro, Gemini CLI, Openclaw
- *     These adapters have DBs on disk but only test fixtures, dev skeletons,
- *     or detection probes — no real chat activity.
+ *     No real chat activity: Kiro, Gemini CLI, Openclaw
+ *     Some activity, but below the real-usage threshold: Cursor, Codex CLI, Pi
  *
  * Slice 3.5 backward compat is asserted indirectly: this file passes the
  * `multiAdapter` opt and asserts new behaviour. The pre-existing
@@ -159,14 +159,14 @@ describe("Slice 3.2 — formatReport renders 'Where it came from' sub-block", ()
 });
 
 describe("Slice 3.3 — Skipped adapters disclosure", () => {
-  test("lists skipped adapter names with count and 'no real chat activity' rationale", () => {
+  test("lists skipped adapter names with count and a separate rationale per group", () => {
     const text = formatReport(baseReport(), "1.0.111", null, {
       lifetime: lifetime(),
       multiAdapter: multi([
         adapter("claude-code", { events: 17_413, data: 276_700_000, projects: new Array(12).fill(0).map((_, i) => `/p/${i}`), isReal: true }),
         adapter("cursor",      { events: 5, data: 100, projects: ["/p/c"], isReal: false }),
         adapter("codex",       { events: 2, data: 50,  projects: ["/p/cdx"], isReal: false }),
-        adapter("pi",          { events: 1, data: 20,  projects: ["/p/pi"], isReal: false }),
+        adapter("pi",          { events: 0, data: 0,  projects: ["/p/pi"], isReal: false }),
       ]),
     });
     expect(text).toMatch(/Skipped \(3\):/);
@@ -175,8 +175,20 @@ describe("Slice 3.3 — Skipped adapters disclosure", () => {
     expect(text).toMatch(/Codex/);
     expect(text).toMatch(/Pi/);
     // Disclosure rationale.
-    expect(text).toMatch(/no real chat activity/i);
+    expect(text).toMatch(/ No real chat activity: Pi/);
+    expect(text).toMatch(/below the real-usage threshold: Cursor, Codex CLI/);
   });
+  test("skipped adapter with some events is not described as 'no real chat activity'", () => {
+    const text = formatReport(baseReport(), "1.0.111", null, {
+      lifetime: lifetime(),
+      multiAdapter: multi([
+        adapter("claude-code", { events: 17_413, data: 276_700_000, projects: new Array(12).fill(0).map((_, i) => `/p/${i}`), isReal: true }),
+        adapter("cursor",      { events: 40, data: 100, projects: ["/p/c"], isReal: false }),
+      ]),
+    });
+    expect(text).not.toMatch(/no real chat activity/i);
+    expect(text).toMatch('below the real-usage threshold');
+  })
 
   test("when no adapters are skipped, no 'Skipped' line appears", () => {
     const text = formatReport(baseReport(), "1.0.111", null, {