Integrate better with systemd + better logs and protocol usage

This commits adds the following:

- Better systemd integration and usage:
  - More hardening
  - A watchdog thread
  - Journald native logging

as well as

- Better logs
- Some protocol usage fixes

Cargo.lock

@@ -253,6 +253,16 @@ dependencies = [
  "clap_derive",
 ]
 
+[[package]]
+name = "clap-verbosity-flag"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63d19864d6b68464c59f7162c9914a0b569ddc2926b4a2d71afe62a9738eff53"
+dependencies = [
+ "clap",
+ "log",
+]
+
 [[package]]
 name = "clap_builder"
 version = "4.5.15"
@@ -993,6 +1003,9 @@ name = "log"
 version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+dependencies = [
+ "value-bag",
+]
 
 [[package]]
 name = "lru"
@@ -1064,6 +1077,7 @@ dependencies = [
  "async-bincode",
  "bincode",
  "clap",
+ "clap-verbosity-flag",
  "clap_complete",
  "derive_more",
  "dialoguer",
@@ -1082,6 +1096,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sqlx",
+ "systemd-journal-logger",
  "tokio",
  "tokio-serde",
  "tokio-stream",
@@ -1996,6 +2011,16 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "systemd-journal-logger"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5f3848dd723f2a54ac1d96da793b32923b52de8dfcced8722516dac312a5b2a"
+dependencies = [
+ "log",
+ "rustix",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.12.0"
@@ -2287,6 +2312,12 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "value-bag"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a84c137d37ab0142f0f2ddfe332651fdbf252e7b7dbb4e67b6c1f1b2e925101"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"