chore(release): bump to v0.8.2 — 用量统计性能专项 + models.dev 快照同步

功能与数据口径零变化（用量数字、字段、IPC 签名、导出格式均与 v0.8.1 一致）。

- db.rs：新增进程级连接单例（含迁移只跑一次），卡片墙场景由 200+ 次「开连接 + 7 条 DDL」降为 1 次；
  新增写路径代际计数器供各处读缓存判失效
- commands.rs：load_agent_config_command 结果缓存（db 代际 + config.toml 文件戳双重校验），
  N 张供应商卡片由 N 次全量加载（config.toml 解析 + SQLite 全量读 + 逐供应商 settings 读）降为 1 次
- dashboard.rs：
  * build_all_models 单遍轻量聚合，替换原先为取一张模型表而白算日/明细/供应商三份数据的整表遍历
  * SUMMARY_CACHE 按记录集 Arc 身份 + 日期 + 分钟桶缓存热力图/模型总览/各范围汇总，切范围来回近乎零成本
  * 归档会话列表与合成记录按代际 + Arc 身份缓存（合并后的 Arc 保持稳定，否则上层缓存永不命中）
  * 解析结果持久化到 ~/.kimi-switch/scan-cache-<hash>.json：重启后首次 get_summary 直读快照
    （实测 6.4 万条记录 / 1.03 GB：22~27s → 0.85s），随后后台线程全量校验，
    有变化时经 dashboard://records-updated 事件推送，前端无感刷新（先快后准）；
    快照损坏/指纹不符静默降级为全量扫描，refresh=true 语义不变
- useDashboard.ts：stale-while-revalidate，切范围/重进页面先呈现旧数据再静默刷新，不再闪加载态；
  订阅上述事件做无感更新，保留原世代号防竞态

测试：Rust 193 项（+16）、前端 130 项全绿

CHANGELOG.md

@@ -6,6 +6,17 @@
 
 ---
 
+## v0.8.2 (2026-10-09)
+
+性能专项，功能与数据口径不变（用量数字、字段、IPC 接口、导出格式均与 v0.8.1 一致）。
+
+- **仪表盘重启后首次打开：约 22~27 秒 → 约 0.85 秒**（实测 6.4 万条记录 / 1.03 GB）。用量解析结果持久化到 `~/.kimi-switch/scan-cache-*.json`，启动直读快照渲染，后台线程全量校验，有变化时事件推送无感更新（先快后准）
+- **切换时间范围几乎瞬时**：热力图 / 模型总览 / 各范围汇总按记录集缓存；并去掉原「全时段」聚合的整表无用遍历
+- **界面不再闪加载态**：切范围与重进页面先呈现旧数据再静默刷新（stale-while-revalidate）
+- **供应商卡片墙变快**：供应商配置读取缓存（含外部 CLI 改动失效路径），N 张卡片由 N 次全量加载降为 1 次
+- **SQLite 连接复用**：连接与迁移改为每库一次，卡片墙场景由 200+ 次降为 1 次
+- **models.dev 快照更新**：同步至 2026-10-09（8,467 模型 / 225 供应商）
+
 ## v0.8.1 (2026-10-04)
 
 - **全局配置新增两个顶层开关**：自动生成会话标题（`auto_session_title`）与重复调用拦截（`repeat_breaker`），默认开启，关闭显式写 `false`、开启删键跟随上游默认（适配 kimi-code #3962 / #3995）

docs/release-notes/release-notes-v0.8.2.md

@@ -0,0 +1,21 @@
+# KimiSwitch v0.8.2
+
+本版为**性能专项**：把主要操作的等待时间从「秒级」压到「感知不到」，功能与数据口径完全不变。
+
+## 性能优化
+
+- **仪表盘重启后首次打开：约 22~27 秒 → 约 0.85 秒**（实测 1065 个 `wire.jsonl` / 1.03 GB / 6.4 万条记录）。用量解析结果持久化到本地快照（`~/.kimi-switch/scan-cache-*.json`），启动时直接读快照渲染，后台线程同时做全量校验；校验发现新记录时自动推送事件、无感更新数字（先快后准，无需手动刷新）
+- **切换时间范围几乎瞬时**：热力图、模型总览、各范围汇总结果按记录集与日期缓存，来回切换不再重复全量聚合；未命中时也不再做无用的整表遍历（原「全时段」统计会为取一张模型表而白算日/明细/供应商三份数据）
+- **界面不再闪加载态**：仪表盘切范围与重新进入页面时先呈现上次数据再后台静默刷新，不再出现数据已经拿过却先显示骨架屏的情况
+- **供应商卡片墙显著变快**：供应商配置读取结果加缓存（含敏感字段写入与外部 CLI 改动两条失效路径），N 张卡片从 N 次全量读库 + 配置解析降为 1 次
+- **SQLite 连接复用**：库连接与建表迁移从「每次调用各做一遍」改为每库一次，卡片墙场景下由 200+ 次降为 1 次
+
+## 其他
+
+- **models.dev 快照更新**：同步至 2026-10-09（8,467 模型 / 225 供应商），价格与上下文长度随之刷新
+
+## 备注
+
+- 数据口径与功能行为与 v0.8.1 完全一致：用量数字、字段、IPC 接口、导出格式均无变化；「强制刷新」仍会忽略一切缓存重新全量解析
+- 测试全量通过：Rust 193 项（新增 16 项，覆盖缓存失效、磁盘快照往返等价、损坏快照降级等）、前端 130 项
+- 首次使用本版本时会重建一次磁盘快照（沿用原有全量扫描耗时），此后每次启动均为快速加载

package.json

@@ -1,7 +1,7 @@
 {
   "name": "kimiswitch",
   "private": true,
-  "version": "0.8.1",
+  "version": "0.8.2",
   "type": "module",
   "scripts": {
     "dev": "vite",

src-tauri/Cargo.lock

@@ -1978,7 +1978,7 @@ dependencies = [
 
 [[package]]
 name = "kimiswitch"
-version = "0.8.1"
+version = "0.8.2"
 dependencies = [
  "anyhow",
  "chrono",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "kimiswitch"
-version = "0.8.1"
+version = "0.8.2"
 description = "Kimi Switch - model config manager"
 authors = ["codingplan.site"]
 edition = "2021"

src-tauri/src/commands.rs

@@ -6,7 +6,7 @@ use indexmap::IndexMap;
 use serde::Serialize;
 use std::collections::HashMap;
 use std::sync::{Mutex, OnceLock};
-use std::time::{Duration, Instant};
+use std::time::{Duration, Instant, UNIX_EPOCH};
 use tauri::Manager;
 use tauri_plugin_opener::OpenerExt;
 
@@ -79,8 +79,61 @@ fn load_pi_native_config() -> Result<Config, String> {
     Ok(config)
 }
 
+/// Cached `load_agent_config_command` results, keyed by agent. The full load
+/// parses config.toml, reads all of SQLite and runs `merge_usage_kinds` (two
+/// settings reads per provider); a usage-card wall triggers one load per
+/// provider card, so caching turns N loads into one. Entries are validated
+/// against the db generation counter (bumped by every write path in db.rs)
+/// plus the config.toml file stamp (catches edits made outside the app, e.g.
+/// the CLI's /provider command).
+static CONFIG_CACHE: Mutex<Option<HashMap<String, (u64, Option<(u64, u64)>, Config)>>> =
+    Mutex::new(None);
+
+/// (mtime_ms, len) of the authoritative on-disk config file for the agent, or
+/// None when the file is absent / the agent has no authoritative file (Pi is
+/// SQLite-first, so the db generation alone covers it).
+fn config_file_stamp(agent: &Agent) -> Option<(u64, u64)> {
+    match agent {
+        Agent::KimiCode => {
+            let md = std::fs::metadata(crate::kimi_code_io::kimi_code_config_path()).ok()?;
+            let mtime_ms = md
+                .modified()
+                .ok()?
+                .duration_since(UNIX_EPOCH)
+                .ok()?
+                .as_millis() as u64;
+            Some((mtime_ms, md.len()))
+        }
+        Agent::Pi => None,
+    }
+}
+
 #[tauri::command]
 pub fn load_agent_config_command(agent: Agent) -> Result<Config, String> {
+    let stamp = config_file_stamp(&agent);
+    let gen = db::generation();
+    let key = agent.as_str().to_string();
+
+    {
+        let guard = CONFIG_CACHE.lock().unwrap_or_else(|e| e.into_inner());
+        if let Some(map) = guard.as_ref() {
+            if let Some((cached_gen, cached_stamp, config)) = map.get(&key) {
+                if *cached_gen == gen && *cached_stamp == stamp {
+                    return Ok(config.clone());
+                }
+            }
+        }
+    }
+
+    let config = load_agent_config_uncached(agent)?;
+    let mut guard = CONFIG_CACHE.lock().unwrap_or_else(|e| e.into_inner());
+    guard
+        .get_or_insert_with(HashMap::new)
+        .insert(key, (gen, stamp, config.clone()));
+    Ok(config)
+}
+
+fn load_agent_config_uncached(agent: Agent) -> Result<Config, String> {
     // Load Kimi Switch's own SQLite database (metadata + migration fallback).
     let db_config = db::load_config(&agent).ok();
 

src-tauri/src/db.rs

@@ -6,6 +6,8 @@
 //! a provider.
 
 use std::path::PathBuf;
+use std::sync::atomic::{AtomicU64, Ordering};
+use std::sync::Mutex;
 
 use anyhow::Context;
 use indexmap::IndexMap;
@@ -17,6 +19,51 @@ use crate::models::{Agent, Config, Model, Provider, ProviderType};
 
 pub type DbResult<T> = anyhow::Result<T>;
 
+/// Process-wide cached connection, keyed by the resolved db path. Opening a
+/// SQLite connection plus running the DDL migrations costs several ms; before
+/// this cache every public helper paid that cost on every call (a usage-card
+/// wall could open 200+ connections per refresh). `Connection` is `Send` but
+/// not `Sync`, so a `Mutex` is the correct `static` wrapper — all db access is
+/// serialized, which is fine for a single-user desktop app.
+static DB_CONN: Mutex<Option<(PathBuf, Connection)>> = Mutex::new(None);
+
+/// Monotonic generation counter, bumped by every write path. Read-side caches
+/// (config cache, archived-session cache) key on this to detect staleness.
+static DB_GEN: AtomicU64 = AtomicU64::new(0);
+
+pub(crate) fn generation() -> u64 {
+    DB_GEN.load(Ordering::Relaxed)
+}
+
+pub(crate) fn bump_generation() {
+    DB_GEN.fetch_add(1, Ordering::Relaxed);
+}
+
+/// Run `f` against the cached connection for the current `db_path()`, opening
+/// (and migrating) it on first use or whenever the path changed (tests point
+/// `KIMI_SWITCH_DB_PATH` at per-test temp dirs).
+fn with_conn<T>(f: impl FnOnce(&mut Connection) -> DbResult<T>) -> DbResult<T> {
+    let mut guard = DB_CONN.lock().unwrap_or_else(|e| e.into_inner());
+    let path = db_path();
+    let needs_open = match guard.as_ref() {
+        Some((cached_path, _)) => cached_path != &path,
+        None => true,
+    };
+    if needs_open {
+        *guard = Some((path, init_db()?));
+    }
+    let (_, conn) = guard.as_mut().expect("connection just opened");
+    f(conn)
+}
+
+/// Drop the cached connection so tests that switch `KIMI_SWITCH_DB_PATH`
+/// between temp dirs never observe cross-test state.
+#[cfg(test)]
+pub(crate) fn close_cached_conn_for_tests() {
+    let mut guard = DB_CONN.lock().unwrap_or_else(|e| e.into_inner());
+    *guard = None;
+}
+
 pub fn kimi_switch_data_dir() -> PathBuf {
     dirs::home_dir()
         .map(|h| h.join(".kimi-switch"))
@@ -158,7 +205,10 @@ pub fn init_db() -> DbResult<Connection> {
 }
 
 pub fn load_config(agent: &Agent) -> DbResult<Config> {
-    let mut conn = init_db()?;
+    with_conn(|conn| load_config_inner(conn, agent))
+}
+
+fn load_config_inner(conn: &mut Connection, agent: &Agent) -> DbResult<Config> {
     let tx = conn.transaction()?;
 
     let default_model = get_setting_tx(&tx, &default_model_key(agent))?;
@@ -249,7 +299,12 @@ pub fn load_config(agent: &Agent) -> DbResult<Config> {
 }
 
 pub fn save_config(agent: &Agent, config: &Config) -> DbResult<()> {
-    let mut conn = init_db()?;
+    with_conn(|conn| save_config_inner(conn, agent, config))?;
+    bump_generation();
+    Ok(())
+}
+
+fn save_config_inner(conn: &mut Connection, agent: &Agent, config: &Config) -> DbResult<()> {
     let tx = conn.transaction()?;
 
     tx.execute("DELETE FROM providers WHERE agent = ?1", params![agent.as_str()])?;
@@ -340,29 +395,36 @@ fn set_setting_tx(tx: &rusqlite::Transaction, key: &str, value: &str) -> DbResul
 
 /// Public helper: read a single setting without an explicit transaction.
 pub fn get_setting_pub(key: &str) -> DbResult<Option<String>> {
-    let conn = init_db()?;
-    let mut stmt = conn.prepare("SELECT value FROM settings WHERE key = ?1")?;
-    let mut rows = stmt.query(params![key])?;
-    if let Some(row) = rows.next()? {
-        Ok(Some(row.get(0)?))
-    } else {
-        Ok(None)
-    }
+    with_conn(|conn| {
+        let mut stmt = conn.prepare("SELECT value FROM settings WHERE key = ?1")?;
+        let mut rows = stmt.query(params![key])?;
+        if let Some(row) = rows.next()? {
+            Ok(Some(row.get(0)?))
+        } else {
+            Ok(None)
+        }
+    })
 }
 
 /// Public helper: write a single setting in its own transaction.
 pub fn set_setting_pub(key: &str, value: &str) -> DbResult<()> {
-    let mut conn = init_db()?;
-    let tx = conn.transaction()?;
-    set_setting_tx(&tx, key, value)?;
-    tx.commit()?;
+    with_conn(|conn| {
+        let tx = conn.transaction()?;
+        set_setting_tx(&tx, key, value)?;
+        tx.commit()?;
+        Ok(())
+    })?;
+    bump_generation();
     Ok(())
 }
 
 /// Public helper: delete a single setting (no-op if the key does not exist).
 pub fn delete_setting_pub(key: &str) -> DbResult<()> {
-    let conn = init_db()?;
-    conn.execute("DELETE FROM settings WHERE key = ?1", params![key])?;
+    with_conn(|conn| {
+        conn.execute("DELETE FROM settings WHERE key = ?1", params![key])?;
+        Ok(())
+    })?;
+    bump_generation();
     Ok(())
 }
 
@@ -413,55 +475,59 @@ pub struct ArchivedSessionSnapshot {
 /// Insert or replace one archived-session snapshot (keyed by session id, which
 /// is a UUID and never reused).
 pub fn upsert_archived_session(row: &ArchivedSessionSnapshot) -> DbResult<()> {
-    let conn = init_db()?;
-    let day_stats = serde_json::to_string(&row.day_stats)?;
-    conn.execute(
-        "INSERT OR REPLACE INTO archived_sessions
-         (session_id, workspace_id, title, archived_at_ms, updated_at_ms, created_at_ms, total_tokens, total_cost_usd, day_stats)
-         VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)",
-        params![
-            row.session_id,
-            row.workspace_id,
-            row.title,
-            row.archived_at_ms as i64,
-            row.updated_at_ms.map(|v| v as i64),
-            row.created_at_ms.map(|v| v as i64),
-            row.total_tokens as i64,
-            row.total_cost_usd,
-            day_stats,
-        ],
-    )?;
+    with_conn(|conn| {
+        let day_stats = serde_json::to_string(&row.day_stats)?;
+        conn.execute(
+            "INSERT OR REPLACE INTO archived_sessions
+             (session_id, workspace_id, title, archived_at_ms, updated_at_ms, created_at_ms, total_tokens, total_cost_usd, day_stats)
+             VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9)",
+            params![
+                row.session_id,
+                row.workspace_id,
+                row.title,
+                row.archived_at_ms as i64,
+                row.updated_at_ms.map(|v| v as i64),
+                row.created_at_ms.map(|v| v as i64),
+                row.total_tokens as i64,
+                row.total_cost_usd,
+                day_stats,
+            ],
+        )?;
+        Ok(())
+    })?;
+    bump_generation();
     Ok(())
 }
 
 /// Every stored archived-session snapshot. Unreadable `day_stats` JSON degrades
 /// to an empty breakdown instead of failing the whole list.
 pub fn list_archived_sessions() -> DbResult<Vec<ArchivedSessionSnapshot>> {
-    let conn = init_db()?;
-    let mut stmt = conn.prepare(
-        "SELECT session_id, workspace_id, title, archived_at_ms, updated_at_ms, created_at_ms,
-                total_tokens, total_cost_usd, day_stats
-         FROM archived_sessions",
-    )?;
-    let rows = stmt.query_map([], |row| {
-        let day_stats_json: String = row.get(8)?;
-        Ok(ArchivedSessionSnapshot {
-            session_id: row.get(0)?,
-            workspace_id: row.get(1)?,
-            title: row.get(2)?,
-            archived_at_ms: row.get::<_, i64>(3)? as u64,
-            updated_at_ms: row.get::<_, Option<i64>>(4)?.map(|v| v as u64),
-            created_at_ms: row.get::<_, Option<i64>>(5)?.map(|v| v as u64),
-            total_tokens: row.get::<_, i64>(6)? as u64,
-            total_cost_usd: row.get(7)?,
-            day_stats: serde_json::from_str(&day_stats_json).unwrap_or_default(),
-        })
-    })?;
-    let mut out = Vec::new();
-    for row in rows {
-        out.push(row?);
-    }
-    Ok(out)
+    with_conn(|conn| {
+        let mut stmt = conn.prepare(
+            "SELECT session_id, workspace_id, title, archived_at_ms, updated_at_ms, created_at_ms,
+                    total_tokens, total_cost_usd, day_stats
+             FROM archived_sessions",
+        )?;
+        let rows = stmt.query_map([], |row| {
+            let day_stats_json: String = row.get(8)?;
+            Ok(ArchivedSessionSnapshot {
+                session_id: row.get(0)?,
+                workspace_id: row.get(1)?,
+                title: row.get(2)?,
+                archived_at_ms: row.get::<_, i64>(3)? as u64,
+                updated_at_ms: row.get::<_, Option<i64>>(4)?.map(|v| v as u64),
+                created_at_ms: row.get::<_, Option<i64>>(5)?.map(|v| v as u64),
+                total_tokens: row.get::<_, i64>(6)? as u64,
+                total_cost_usd: row.get(7)?,
+                day_stats: serde_json::from_str(&day_stats_json).unwrap_or_default(),
+            })
+        })?;
+        let mut out = Vec::new();
+        for row in rows {
+            out.push(row?);
+        }
+        Ok(out)
+    })
 }
 
 fn provider_type_for_str(s: &str) -> ProviderType {

src-tauri/tauri.conf.json

@@ -1,6 +1,6 @@
 {
   "productName": "Kimi Switch",
-  "version": "0.8.1",
+  "version": "0.8.2",
   "identifier": "com.kimiswitch.app",
   "build": {
     "beforeDevCommand": "npm run dev",

src/components/dashboard/DashboardPage.tsx

@@ -179,7 +179,7 @@ export function DashboardPage() {
           </div>
           {loadStats && !loading && (
             <span className="hidden text-[10px] text-content-muted sm:inline">
-              {t("loadStats", { ms: loadStats.ms, kb: loadStats.kb })}
+              {t("loadStats", { ms: loadStats.ms })}
             </span>
           )}
         </div>

src/hooks/useDashboard.ts

@@ -1,32 +1,68 @@
-import { useCallback, useEffect, useState } from "react";
+import { useCallback, useEffect, useRef, useState } from "react";
 import { invoke } from "@tauri-apps/api/core";
+import { listen } from "@tauri-apps/api/event";
 import type { SummaryResult } from "../types/dashboard";
 
 export type DashboardRange = "today" | "yesterday" | "7d" | "30d" | "all";
 
 const RANGE_STORAGE_KEY = "kimi-switch-dashboard-range";
 
-export function useDashboard() {
-  const [range, setRange] = useState<DashboardRange>(() => {
-    try {
-      const stored = localStorage.getItem(RANGE_STORAGE_KEY) as DashboardRange | null;
-      if (stored === "today" || stored === "yesterday" || stored === "7d" || stored === "30d" || stored === "all") {
-        return stored;
-      }
-    } catch {
-      // ignore
-    }
-    return "30d";
-  });
+/**
+ * Emitted by the backend when the background verification walk found records the
+ * fast (disk-cache) path did not have. The payload is empty — the hook only
+ * needs to know that a re-fetch is worth making.
+ */
+const RECORDS_UPDATED_EVENT = "dashboard://records-updated";
 
-  const [data, setData] = useState<SummaryResult | null>(null);
+const RANGES: readonly DashboardRange[] = ["today", "yesterday", "7d", "30d", "all"];
+
+function readStoredRange(): DashboardRange {
+  try {
+    const stored = localStorage.getItem(RANGE_STORAGE_KEY) as DashboardRange | null;
+    if (stored && (RANGES as readonly string[]).includes(stored)) {
+      return stored;
+    }
+  } catch {
+    // ignore
+  }
+  return "30d";
+}
+
+/**
+ * Last successful payload per range, kept across mounts so a range switch (and
+ * reopening the page) paints instantly from memory and revalidates in the
+ * background instead of showing a spinner over data that is already known.
+ * Bounded by the five ranges the dashboard offers.
+ */
+const summaryCache = new Map<DashboardRange, SummaryResult>();
+
+export function useDashboard() {
+  const [range, setRange] = useState<DashboardRange>(readStoredRange);
+
+  const [data, setData] = useState<SummaryResult | null>(
+    () => summaryCache.get(readStoredRange()) ?? null,
+  );
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
   /** Round-trip timing for the last get_summary call (user-perceived lag). */
-  const [loadStats, setLoadStats] = useState<{ ms: number; kb: number } | null>(null);
+  const [loadStats, setLoadStats] = useState<{ ms: number } | null>(null);
+  // Generation counter: stale responses (superseded range / unmounted) are dropped.
+  const genRef = useRef(0);
+  // The event handler must call the *current* refresh, not the one captured when
+  // the listener was installed, so it reads the callback through a ref.
+  const refreshRef = useRef<(force?: boolean) => Promise<void>>(async () => {});
 
   const refresh = useCallback(async (force = false) => {
-    setLoading(true);
+    const gen = ++genRef.current;
+    // Stale-while-revalidate: hand the cached payload for this range to the
+    // view before the request goes out, so a range switch is instant and the
+    // response only refreshes numbers that are already on screen. `loading` is
+    // raised only when there is nothing to show (first load of a range) or when
+    // the user asked for a refresh — the button keeps its busy state, the silent
+    // revalidation behind a cached range does not.
+    const cached = summaryCache.get(range);
+    if (cached) setData(cached);
+    setLoading(force || !cached);
     setError(null);
     const start = performance.now();
     try {
@@ -34,23 +70,59 @@ export function useDashboard() {
         range,
         refresh: force,
       });
+      if (genRef.current !== gen) return;
+      summaryCache.set(range, result);
       setData(result);
-      setLoadStats({
-        ms: Math.round(performance.now() - start),
-        kb: Math.round(JSON.stringify(result).length / 1024),
-      });
+      setLoadStats({ ms: Math.round(performance.now() - start) });
     } catch (err) {
+      if (genRef.current !== gen) return;
       const msg = err instanceof Error ? err.message : String(err);
       setError(msg);
     } finally {
-      setLoading(false);
+      if (genRef.current === gen) setLoading(false);
     }
   }, [range]);
 
+  refreshRef.current = refresh;
+
   useEffect(() => {
     refresh();
   }, [refresh]);
 
+  // The first load of a session answers from the on-disk snapshot, which can be
+  // behind a session written since the app last ran. The backend verifies in the
+  // background and signals here when the numbers moved; re-fetching silently
+  // (never raising `loading`) keeps the already-drawn dashboard on screen and
+  // just corrects it. A silent call still takes a fresh generation, so it cannot
+  // be interleaved with a range switch in flight.
+  useEffect(() => {
+    let unlisten: (() => void) | undefined;
+    let cancelled = false;
+    listen(RECORDS_UPDATED_EVENT, () => {
+      refreshRef.current();
+    })
+      .then((fn) => {
+        // The effect may have been torn down before `listen` resolved.
+        if (cancelled) fn();
+        else unlisten = fn;
+      })
+      .catch(() => {
+        // No event bridge (e.g. a browser build): the dashboard still works,
+        // it just will not be corrected mid-session.
+      });
+    return () => {
+      cancelled = true;
+      unlisten?.();
+    };
+  }, []);
+
+  // Ignore late responses after unmount.
+  useEffect(() => {
+    return () => {
+      genRef.current += 1;
+    };
+  }, []);
+
   const changeRange = useCallback((next: DashboardRange) => {
     setRange(next);
     try {

src/i18n/en.ts

@@ -257,7 +257,7 @@ export const enTranslations: Record<TranslationKey, string> = {
   scanning: "Scanning…",
   refresh: "Refresh",
   refreshing: "Refreshing…",
-  loadStats: "Loaded in {ms} ms · {kb} KB payload",
+  loadStats: "Loaded in {ms} ms",
   refreshed: "Refreshed",
   cancel: "Cancel",
   confirmDeleteTitle: "Delete session forever?",

src/i18n/zh.ts

@@ -249,7 +249,7 @@ export const zhTranslations = {
   scanning: "扫描中…",
   refresh: "刷新",
   refreshing: "刷新中…",
-  loadStats: "加载 {ms} ms · 数据 {kb} KB",
+  loadStats: "加载 {ms} ms",
   refreshed: "已刷新",
   cancel: "取消",
   confirmDeleteTitle: "永久删除会话？",