refactor(log): in-place writer lifecycle and span-based core observability (#7889)

* refactor(log): migrate logging to tracing-estuary pipeline

Swap flexi_logger + clash-verge-logger wiring for the tracing-estuary
crate: buffered file sink with explicit panic/exit drains, live level
switching, and tokio-trace/chrome-trace behind crate features.

AsyncLogger moves in-house (VecDeque ring); file format and rotation
stay unchanged.

* fix(log): reset sidecar writer in place and re-pin service-ipc v2.6.7

Rebuilding the sidecar FileLogWriter on config changes leaked flexi's
unstoppable flusher thread plus an fd each time; the writer is now flushed
and reset in place, matching what the service crate does.
get_clash_logs_by_service drops the CompactString conversion layer now that
service-ipc v2.6.7 returns plain Vec<String>, and AsyncLogger is renamed
LogRing to match.

* refactor(log): span-based observability and log noise cleanup

Instrument spans carry the structure flat lines never could: the core-start
spine (mode, readiness/owner generations, pid, config file), proxy apply and
clear routes with guard generations, service IPC sessions with refusal codes
and outcomes, profile-switch terminal outcomes, subscription fetch strategies,
core upgrades with per-proxy version probes, backup flows, timer tasks, config
generation uids, and the startup setup flow; running-mode changes emit one
guarded transition event each.
~90 hand-written noise lines are gone or demoted (entry+success pairs, polled
getter echoes, phase brackets, window sub-steps, platform install chatter);
errors keep their anyhow chain, operation name, and item id, and swallowed
retry results surface per attempt.

src-tauri/src/cmd/network.rs

@@ -1,7 +1,7 @@
 use super::CmdResult;
 use crate::cmd::StringifyErr as _;
 use crate::core::{proxy_control, sysopt::Sysopt};
-use clash_verge_logging::{Type, logging};
+
 use gethostname::gethostname;
 use network_interface::NetworkInterface;
 use serde_yaml_ng::Mapping;
@@ -10,8 +10,6 @@ use tauri_plugin_clash_verge_sysinfo;
 
 #[tauri::command]
 pub async fn get_sys_proxy() -> CmdResult<Mapping> {
-    logging!(debug, Type::Network, "异步获取系统代理配置");
-
     Sysopt::global().wait_idle().await;
     // With no network service there is no proxy configured anywhere, which reads as disabled.
     let sys_proxy = match Sysproxy::get_system_proxy() {
@@ -29,15 +27,6 @@ pub async fn get_sys_proxy() -> CmdResult<Mapping> {
     map.insert("enable".into(), (*enable).into());
     map.insert("server".into(), format!("{}:{}", host, port).into());
     map.insert("bypass".into(), bypass.as_str().into());
-
-    logging!(
-        debug,
-        Type::Network,
-        "返回系统代理配置: enable={}, {}:{}",
-        sys_proxy.enable,
-        sys_proxy.host,
-        sys_proxy.port
-    );
     Ok(map)
 }
 
@@ -53,14 +42,6 @@ pub async fn get_auto_proxy() -> CmdResult<Mapping> {
     let mut map = Mapping::new();
     map.insert("enable".into(), (*enable).into());
     map.insert("url".into(), url.as_str().into());
-
-    logging!(
-        debug,
-        Type::Network,
-        "返回自动代理配置（缓存）: enable={}, url={}",
-        auto_proxy.enable,
-        auto_proxy.url
-    );
     Ok(map)
 }