feat: CPU页系统性能三档切换 v1.3.13（省电/平衡/高性能，写宿主cpufreq即时生效，宿主文件持久记忆，旁注说明）

app.py

@@ -16,7 +16,7 @@ PORT = int(os.environ.get("PORT", "7031"))
 # ---------- CardAuth hub (免费形态: 安装统计/在线/公告/版本推送,失败开放) ----------
 HUB_URL = os.environ.get("HUB_URL", "https://auth.88531.cn/api").rstrip("/")
 HUB_PROJECT_ID = os.environ.get("HUB_PROJECT_ID", "12")
-HUB_VERSION = os.environ.get("SITE_VERSION", "1.3.12")
+HUB_VERSION = os.environ.get("SITE_VERSION", "1.3.13")
 HUB = {"ok": False, "install_id": None, "latest": "", "update_available": False,
        "update_required": False, "download_url": "", "changelog": "",
        "announcements": [], "popup": [], "ts": 0}
@@ -463,6 +463,105 @@ def get_percpu():
     except Exception:
         return []
 
+# ---------- CPU 性能模式: 省电/平衡/高性能(写宿主 cpufreq,失败开放) ----------
+PERF_FILE = os.environ.get("PERF_FILE", "/run/secrets/perf_mode.json")
+PERF_FILE_FALLBACKS = [PERF_FILE, "/app/perf_mode.json"]
+PERF_MODES = {
+    "powersave": {"governor": "powersave", "epp": "power",
+                  "name": "省电模式"},
+    "balanced": {"governor": "powersave", "epp": "balance_performance",
+                 "name": "平衡模式"},
+    "performance": {"governor": "performance", "epp": "performance",
+                    "name": "高性能模式"},
+}
+
+def _saved_perf_mode():
+    for p in PERF_FILE_FALLBACKS:
+        try:
+            with open(p) as f:
+                m = (json.load(f) or {}).get("mode", "")
+                if m in PERF_MODES:
+                    return m
+        except Exception:
+            continue
+    return ""
+
+def _read_perf():
+    gov, epp = "", ""
+    try:
+        with open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor") as f:
+            gov = f.read().strip()
+    except Exception:
+        pass
+    try:
+        with open("/sys/devices/system/cpu/cpufreq/policy0/energy_performance_preference") as f:
+            epp = f.read().strip().split()[0]
+    except Exception:
+        pass
+    mode = ""
+    for k, v in PERF_MODES.items():
+        if v["governor"] == gov and (not epp or v["epp"] == epp):
+            mode = k
+            break
+    return {"governor": gov, "epp": epp, "mode": mode,
+            "saved": _saved_perf_mode()}
+
+def _apply_perf(mode):
+    if mode not in PERF_MODES:
+        return {"ok": False, "error": "未知模式"}
+    want = PERF_MODES[mode]
+    ok_g = fail_g = ok_e = fail_e = 0
+    for p in sorted(glob.glob("/sys/devices/system/cpu/cpu[0-9]*/cpufreq/scaling_governor")):
+        try:
+            with open(p, "w") as f:
+                f.write(want["governor"])
+            ok_g += 1
+        except Exception:
+            fail_g += 1
+    for p in sorted(glob.glob("/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference")):
+        try:
+            with open(p, "w") as f:
+                f.write(want["epp"])
+            ok_e += 1
+        except Exception:
+            fail_e += 1
+    if ok_g == 0 and fail_g > 0:
+        return {"ok": False, "error": "调频接口不可写( governor 写入失败 )"}
+    try:
+        with open(PERF_FILE, "w") as f:
+            json.dump({"mode": mode}, f)
+    except Exception:
+        try:
+            with open("/app/perf_mode.json", "w") as f:
+                json.dump({"mode": mode}, f)
+        except Exception:
+            pass
+    st = _read_perf()
+    st.update({"ok": True, "mode": mode, "gov_ok": ok_g, "gov_fail": fail_g,
+               "epp_ok": ok_e, "epp_fail": fail_e,
+               "msg": "已切换为%s,立即生效,不重启电脑" % want["name"]})
+    return st
+
+@app.route("/api/cpu/perf")
+def api_cpu_perf():
+    return jsonify(_read_perf())
+
+@app.route("/api/cpu/perf", methods=["POST"])
+def api_cpu_perf_set():
+    try:
+        mode = (request.get_json(force=True, silent=True) or {}).get("mode", "")
+    except Exception:
+        mode = ""
+    r = _apply_perf(mode)
+    return jsonify(r), (200 if r.get("ok") else 400)
+
+try:
+    _sv = _saved_perf_mode()
+    if _sv:
+        _apply_perf(_sv)
+except Exception:
+    pass
+
 @app.route("/api/mem")
 def api_mem():
     vm = psutil.virtual_memory()