feat(gateway): expand sessions surface with operator metadata and paging hardening

docs/api/PROTOCOL.md

@@ -417,13 +417,19 @@ Useful for proactive compaction monitoring and operator dashboards.
 
 #### `sessions.list`
 
-List all sessions.
+List sessions with optional persisted inclusion, frontend filtering, and paging.
 
 **Request:**
 ```json
 {
   "id": 3,
-  "method": "sessions.list"
+  "method": "sessions.list",
+  "params": {
+    "includePersisted": true,
+    "frontend": "ws",
+    "limit": 50,
+    "offset": 0
+  }
 }
 ```
 
@@ -435,12 +441,27 @@ List all sessions.
     "sessions": [
       {
         "id": "telegram:123456",
-        "createdAt": "2025-02-13T10:00:00Z",
-        "lastActiveAt": "2025-02-13T12:00:00Z",
+        "frontend": "telegram",
+        "userId": "123456",
         "messageCount": 42,
-        "connectionCount": 1
+        "lastMessageAt": 1739448000000,
+        "config": {
+          "modelTier": "fast",
+          "queue": {
+            "mode": "followup",
+            "overflow": "drop_old",
+            "cap": 8,
+            "debounceMs": 250,
+            "summarizeOverflow": true
+          },
+          "elevation": {
+            "active": false,
+            "untilMs": 1739451600000
+          }
+        }
       }
-    ]
+    ],
+    "total": 1
   }
 }
 ```

docs/plans/state.json

@@ -5060,10 +5060,26 @@
         "docs/plans/state.json"
       ],
       "test_status": "pnpm test:run src/tools/builtin/agent-delegate.test.ts + pnpm typecheck passing"
+    },
+    "post-parity-ops-ux-reliability-capability-sessions-surface": {
+      "status": "completed",
+      "date": "2026-02-18",
+      "updated": "2026-02-18",
+      "summary": "Delivered a post-parity 3-track slice in one sessions-focused release: operator UX polish (dashboard Sessions page now shows frontend/model/queue/last-activity with frontend filter + inactive toggle), reliability hardening (`sessions.list`/`sessions.history` now validate and bound pagination/filter params), and capability expansion (`sessions.list` now supports persisted inclusion, frontend filtering, total counts, and per-session config snapshot metadata for model/queue/elevation visibility).",
+      "files_modified": [
+        "src/session/manager.ts",
+        "src/session/manager.test.ts",
+        "src/gateway/handlers/sessions.ts",
+        "src/gateway/handlers/handlers.test.ts",
+        "src/gateway/ui/pages/sessions.js",
+        "docs/api/PROTOCOL.md",
+        "docs/plans/state.json"
+      ],
+      "test_status": "pnpm test:run src/session/manager.test.ts src/gateway/handlers/handlers.test.ts + pnpm typecheck passing"
     }
   },
   "overall_progress": {
-    "total_test_count": 1882,
+    "total_test_count": 1887,
     "all_tests_passing": true,
     "p0_completion": "3/3 (100%)",
     "p1_completion": "4/4 (100%)",
@@ -5083,7 +5099,7 @@
     "gmail_auth_cli": "flynn gmail-auth command implemented with OAuth2 flow, doctor check, config routed to Telegram",
     "native_audio_support": "completed — smart routing for native audio (Gemini/OpenAI/GitHub) vs Whisper transcription fallback",
     "remaining_phases_completion": "Phase 1: 3/3 (100%) — context levels, command registry, memory structure. Phase 2: 3/3 (100%) — component registry, confidence routing, history index. Phase 3: 2/2 (100%) — adaptive memory/compaction, truthfulness/autonomy hardening",
-    "next_up": "Define and execute post-parity roadmap slices beyond OpenClaw gap closure (operator UX polish, reliability hardening, and new capability expansion)"
+    "next_up": "Monitor production feedback for the expanded sessions operator surface and prioritize next post-parity slice from reliability and capability roadmap"
   },
   "soul_md_and_cron_create": {
     "date": "2026-02-11",