fix: 日志输出从文件改为 stdout（journald 可见），紧凑格式，去掉 tracing-appender

Cargo.lock

@@ -544,15 +544,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "crossbeam-channel"
-version = "0.5.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
-dependencies = [
- "crossbeam-utils",
-]
-
 [[package]]
 name = "crossbeam-queue"
 version = "0.3.12"
@@ -2358,7 +2349,6 @@ dependencies = [
  "sqlx",
  "tokio",
  "tracing",
- "tracing-appender",
  "tracing-subscriber",
  "uuid",
 ]
@@ -3304,18 +3294,6 @@ dependencies = [
  "tracing-core",
 ]
 
-[[package]]
-name = "tracing-appender"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "786d480bce6247ab75f005b14ae1624ad978d3029d9113f0a22fa1ac773faeaf"
-dependencies = [
- "crossbeam-channel",
- "thiserror",
- "time",
- "tracing-subscriber",
-]
-
 [[package]]
 name = "tracing-attributes"
 version = "0.1.30"