Harden validation, improve runtime security and refactor core services

Cargo.lock

@@ -296,6 +296,7 @@ dependencies = [
  "base64",
  "clap",
  "clap_complete",
+ "dashmap",
  "ed25519-dalek",
  "hex",
  "r2d2",
@@ -509,6 +510,20 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dashmap"
+version = "6.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6361d5c062261c78a176addb82d4c821ae42bed6089de0e12603cd25de2059c"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+ "hashbrown 0.14.5",
+ "lock_api",
+ "once_cell",
+ "parking_lot_core",
+]
+
 [[package]]
 name = "der"
 version = "0.7.10"