chore(clippy): enforce strict workspace lint policy

Cargo.toml

@@ -102,6 +102,9 @@ webbrowser = "1"
 unsafe_code = "forbid"
 
 [workspace.lints.clippy]
+cognitive_complexity = "deny"
+too_many_arguments = "deny"
+wildcard_imports = "deny"
 dbg_macro = "warn"
 # Style lints from newer toolchains that fight index-heavy pixel code.
 needless_range_loop = "allow"

clippy.toml

@@ -7,3 +7,4 @@ too-many-arguments-threshold = 10
 disallowed-types = [
     { path = "egui::ComboBox", reason = "use craft_ui::ComboBox: egui's combo box menu can't grow back while open (egui#5225)" },
 ]
+cognitive-complexity-threshold = 30