chore: update dependencies and AGENTS.md

- Add mac_address crate for MAC address detection
- Add tempfile dev dependency for testing
- Update AGENTS.md with latest development guidelines

Cargo.lock

@@ -2209,6 +2209,16 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
 
+[[package]]
+name = "mac_address"
+version = "1.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0aeb26bf5e836cc1c341c8106051b573f1766dfa05aa87f0b98be5e51b02303"
+dependencies = [
+ "nix",
+ "winapi",
+]
+
 [[package]]
 name = "matches"
 version = "0.1.10"
@@ -2243,6 +2253,15 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
+[[package]]
+name = "memoffset"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -2340,6 +2359,7 @@ dependencies = [
  "hex",
  "jieba-rs",
  "libc",
+ "mac_address",
  "md5",
  "moka",
  "mongodb",
@@ -2356,6 +2376,7 @@ dependencies = [
  "sha2",
  "sqlx 0.8.6",
  "subtle",
+ "tempfile",
  "thiserror 1.0.69",
  "tokio",
  "tower 0.4.13",
@@ -2448,6 +2469,19 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "nix"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
+dependencies = [
+ "bitflags 2.11.1",
+ "cfg-if",
+ "cfg_aliases",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "no_std_io2"
 version = "0.9.3"