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/enhance/script.rs

@@ -3,7 +3,7 @@ use crate::process::AsyncHandler;
 use super::field::{use_lowercase, use_lowercase_owned};
 use anyhow::{Error, Result};
 use boa_engine::{Context, JsString, JsValue, Source, native_function::NativeFunction};
-use clash_verge_logging::{Type, logging_error};
+use clash_verge_logging::{Type, logging};
 use parking_lot::Mutex;
 use serde_yaml_ng::Mapping;
 use smartstring::alias::String;
@@ -131,7 +131,11 @@ fn use_script_sync(script: String, config: &Mapping, name: &String) -> Result<(M
                 outputs
                     .lock()
                     .push(("exception".into(), "Script execution failed".into()));
-                logging_error!(Type::Config, "Script execution error: {}. Script name: {}", err, name);
+                logging!(
+                    error,
+                    Type::Config,
+                    "Script execution error: {err:#}. Script name: {name}"
+                );
                 Ok((config, outputs.lock().to_vec()))
             }
         }