refactor(obs): enhance log rotation robustness and refine filter logic (#2155)

Signed-off-by: houseme <housemecn@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Cargo.lock

@@ -7695,8 +7695,8 @@ dependencies = [
  "rustfs-config",
  "rustfs-utils",
  "serde",
- "smallvec",
  "sysinfo",
+ "temp-env",
  "tempfile",
  "thiserror 2.0.18",
  "tokio",
@@ -9658,9 +9658,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.22"
+version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f30143827ddab0d256fd843b7a66d164e9f271cfa0dde49142c5ca0ca291f1e"
+checksum = "cb7f578e5945fb242538965c2d0b04418d38ec25c79d160cd279bf0731c8d319"
 dependencies = [
  "matchers",
  "nu-ansi-term",