feat(init): scaffold cargo workspace and CI

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

crates/tui/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "log-viewer-tui"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+ratatui.workspace = true
+crossterm.workspace = true
+clap.workspace = true
+anyhow.workspace = true
+log-viewer-core.workspace = true

crates/tui/src/main.rs

@@ -0,0 +1 @@
+fn main() {}