chore: replace tokio features=["full"] with workspace defaults in 5 crates

Workspace tokio already specifies the needed features (rt-multi-thread,
macros, net, sync, time, fs, signal, io-util, test-util). Three crates
(test_common, test_harness, vault_integration) were skipped because
they are not workspace members and cannot use workspace = true.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

foxhunt-deploy/Cargo.toml

@@ -17,7 +17,7 @@ categories.workspace = true
 clap = { version = "4.5", features = ["derive", "env", "color"] }
 
 # Async Runtime
-tokio = { version = "1.40", features = ["full"] }
+tokio = { workspace = true }
 
 # HTTP Client
 reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }

ml-data/Cargo.toml

@@ -9,7 +9,7 @@ database = { path = "../database" }
 sqlx = { workspace = true }
 
 # Async runtime and concurrency
-tokio = { version = "1.0", features = ["full"] }
+tokio = { workspace = true }
 futures = "0.3"
 
 # Serialization and data handling

services/api_gateway/load_tests/Cargo.toml

@@ -9,7 +9,7 @@ path = "src/main.rs"
 
 [dependencies]
 # Core async runtime
-tokio = { version = "1.42", features = ["full"] }
+tokio = { workspace = true }
 tokio-stream = "0.1"
 futures = "0.3"
 

services/load_tests/Cargo.toml

@@ -20,7 +20,7 @@ path = "src/main.rs"
 
 [dependencies]
 # Core async runtime
-tokio = { workspace = true, features = ["full", "test-util"] }
+tokio = { workspace = true }
 tokio-stream.workspace = true
 futures.workspace = true
 

tests/e2e/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 # Core async runtime
-tokio = { version = "1.0", features = ["full"] }
+tokio = { workspace = true }
 tokio-test = "0.4"
 tokio-stream = "0.1"