feat(tauri): Add Rust linting and formatting configuration

- Add .cargo/config.toml with comprehensive clippy warnings
- Add clippy.toml with custom thresholds for code complexity
- Add rustfmt.toml with formatting rules for consistent code style

tauri/src-tauri/.cargo/config.toml

@@ -0,0 +1,15 @@
+[target.'cfg(all())']
+rustflags = [
+    "-W", "clippy::all",
+    "-W", "clippy::pedantic",
+    "-W", "clippy::nursery",
+    "-W", "clippy::cargo",
+    "-A", "clippy::module_name_repetitions",
+    "-A", "clippy::must_use_candidate",
+    "-A", "clippy::missing_errors_doc",
+    "-A", "clippy::missing_panics_doc",
+    "-A", "clippy::similar_names",
+    "-A", "clippy::too_many_lines",
+    "-A", "clippy::cargo_common_metadata",
+    "-A", "clippy::multiple_crate_versions",
+]

tauri/src-tauri/clippy.toml

@@ -0,0 +1,8 @@
+# Clippy configuration
+cognitive-complexity-threshold = 30
+too-many-arguments-threshold = 8
+type-complexity-threshold = 250
+single-char-binding-names-threshold = 4
+too-many-lines-threshold = 400
+array-size-threshold = 512
+enum-variant-name-threshold = 3

tauri/src-tauri/rustfmt.toml

@@ -0,0 +1,22 @@
+# Rust formatting configuration
+edition = "2021"
+max_width = 100
+tab_spaces = 4
+use_small_heuristics = "Default"
+reorder_imports = true
+reorder_modules = true
+remove_nested_parens = true
+match_arm_blocks = true
+use_field_init_shorthand = true
+use_try_shorthand = true
+newline_style = "Auto"
+format_code_in_doc_comments = true
+wrap_comments = true
+comment_width = 80
+normalize_comments = true
+normalize_doc_attributes = true
+format_strings = true
+format_macro_matchers = true
+format_macro_bodies = true
+imports_granularity = "Crate"
+group_imports = "StdExternalCrate"