libs: Move libs into root workspace

Remove libs from exclude list, and move them explicitly into root
workspace to make sure our core components are in a consistent state.

This is a follow up of #12413.

Signed-off-by: Ruoqing He <ruoqing.he@lingcage.com>

Cargo.lock

@@ -3307,6 +3307,8 @@ dependencies = [
  "slog",
  "slog-scope",
  "subprocess",
+ "tempfile",
+ "test-utils",
  "thiserror 1.0.69",
 ]
 
@@ -3325,6 +3327,7 @@ dependencies = [
  "num_cpus",
  "oci-spec 0.8.4",
  "regex",
+ "rstest",
  "safe-path 0.1.0",
  "serde",
  "serde-enum-str",
@@ -3334,6 +3337,8 @@ dependencies = [
  "slog-scope",
  "sysctl",
  "sysinfo",
+ "tempfile",
+ "test-utils",
  "thiserror 1.0.69",
  "toml",
 ]
@@ -3539,6 +3544,7 @@ dependencies = [
  "slog-json",
  "slog-scope",
  "slog-term",
+ "tempfile",
 ]
 
 [[package]]
@@ -3584,11 +3590,16 @@ version = "0.2.0"
 dependencies = [
  "anyhow",
  "chrono",
+ "lazy_static",
  "maplit",
  "nix 0.30.1",
+ "once_cell",
  "page_size",
  "slog",
+ "slog-async",
  "slog-scope",
+ "slog-term",
+ "test-utils",
  "tokio",
 ]
 
@@ -6073,6 +6084,7 @@ name = "safe-path"
 version = "0.1.0"
 dependencies = [
  "libc",
+ "tempfile",
 ]
 
 [[package]]
@@ -6496,6 +6508,8 @@ dependencies = [
  "kata-sys-util",
  "kata-types",
  "nix 0.26.4",
+ "tempfile",
+ "test-utils",
  "tokio",
 ]
 

Cargo.toml

@@ -6,6 +6,17 @@ rust-version = "1.88"
 
 [workspace]
 members = [
+  # libs
+  "src/libs/kata-sys-util",
+  "src/libs/kata-types",
+  "src/libs/logging",
+  "src/libs/mem-agent",
+  "src/libs/protocols",
+  "src/libs/runtime-spec",
+  "src/libs/safe-path",
+  "src/libs/shim-interface",
+  "src/libs/test-utils",
+
   # kata-agent
   "src/agent",
   "src/agent/rustjail",
@@ -48,7 +59,6 @@ resolver = "2"
 # TODO: Add all excluded crates to root workspace
 exclude = [
   "src/tools",
-  "src/libs",
 
   # kata-deploy binary is standalone and has its own Cargo.toml for now
   "tools/packaging/kata-deploy/binary",

src/libs/Cargo.toml

@@ -1,13 +0,0 @@
-[workspace]
-members = [
-    "kata-sys-util",
-    "kata-types",
-    "logging",
-    "mem-agent",
-    "protocols",
-    "runtime-spec",
-    "safe-path",
-    "shim-interface",
-    "test-utils",
-]
-resolver = "2"