fix: resolve CI/CD issues - remove unused dependencies and imports

- Remove unused thiserror dependency from Cargo.toml
- Remove unused imports (Text, Tabs, Widget, Event, KeyCode, KeyEventKind) from tui/mod.rs
- Remove unused imports (File, Write) from export/mod.rs
- Remove unused pub use ComplexityDistribution from core/analyzer.rs

techdebt-tracker-cli/Cargo.toml

@@ -0,0 +1,41 @@
+[package]
+name = "techdebt-tracker-cli"
+version = "0.1.0"
+edition = "2021"
+authors = ["TechDebt Tracker Contributors"]
+description = "A CLI tool to analyze and track technical debt in codebases"
+repository = "https://github.com/example/techdebt-tracker-cli"
+keywords = ["cli", "tui", "technical-debt", "tree-sitter"]
+categories = ["development-tools", "visualization"]
+
+[dependencies]
+clap = { version = "4.4", features = ["derive", "cargo"] }
+ratatui = "0.26"
+tree-sitter = "0.22"
+serde = { version = "1.0", features = ["derive", "rc"] }
+regex = "1.10"
+anyhow = "1.0"
+toml = "0.8"
+serde_yaml = "0.9"
+ignore = "0.4"
+crossterm = "0.28"
+ansi-to-tui = "4"
+unicode-width = "0.1"
+dirs = "5"
+chrono = { version = "0.4", features = ["std"] }
+glob = "0.3"
+
+[dev-dependencies]
+assert_cmd = "2"
+predicates = "3"
+tempfile = "3"
+
+[features]
+default = []
+dev = ["ratatui/crossterm"]
+
+[profile.release]
+opt-level = 3
+lto = true
+
+[workspace]