feat(server): refactor handlers, router, state management, and memory tools

.cargo/config.toml

@@ -0,0 +1,13 @@
+[build]
+rustc-wrapper = "sccache"
+
+[target.x86_64-pc-windows-msvc]
+linker = "rust-lld"
+
+[profile.dev]
+debug = 1             # Line tables only: cuts object file & PDB size by ~50%
+codegen-units = 16    # Maximizes parallel CPU compilation threads
+incremental = false   # Enables 100% sccache object file caching across builds
+
+[http]
+check-revoke = false  # Prevents SChannel revocation check errors on corporate VPNs