feat(tui): integrate rich context builder into agent turn process

apps/infrastructure/src/utils.rs

@@ -191,3 +191,73 @@ pub fn build_workspace_tree(root: &Path, max_files: usize) -> String {
     
     tree.trim_end().to_string()
 }
+
+// ---------------------------------------------------------------------------
+// Rich Context Builder
+// ---------------------------------------------------------------------------
+
+/// Gathers essential project context (OS, Time, Git, Tech Stack, Rules) into a string.
+pub fn build_rich_context(root: &Path) -> String {
+    use std::process::Command;
+    let mut ctx = String::new();
+
+    // 1. Time and OS
+    let os = std::env::consts::OS;
+    let arch = std::env::consts::ARCH;
+    let time = chrono::Local::now().to_rfc3339();
+    ctx.push_str(&format!("Environment: {} ({}), Current Time: {}\n\n", os, arch, time));
+
+    // 2. Custom Rules
+    let rule_files = [".cursorrules", ".zesdexrules", "claude.md", "agent.md"];
+    for file in rule_files {
+        let p = root.join(file);
+        if let Ok(content) = std::fs::read_to_string(&p) {
+            ctx.push_str(&format!("### Project Rules ({})\n```\n{}\n```\n\n", file, content.trim()));
+        }
+    }
+
+    // 3. Git Status
+    if root.join(".git").exists() {
+        let branch = Command::new("git")
+            .arg("branch")
+            .arg("--show-current")
+            .current_dir(root)
+            .output()
+            .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
+            .unwrap_or_default();
+
+        let status = Command::new("git")
+            .arg("status")
+            .arg("-s")
+            .current_dir(root)
+            .output()
+            .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
+            .unwrap_or_default();
+
+        if !branch.is_empty() {
+            ctx.push_str(&format!("### Git State (branch: {})\n", branch));
+            if !status.is_empty() {
+                ctx.push_str(&format!("Uncommitted changes:\n```\n{}\n```\n", status));
+            } else {
+                ctx.push_str("No uncommitted changes.\n");
+            }
+            ctx.push('\n');
+        }
+    }
+
+    // 4. Tech Stack (manifests)
+    let manifests = ["Cargo.toml", "package.json", "go.mod"];
+    for file in manifests {
+        let p = root.join(file);
+        if let Ok(content) = std::fs::read_to_string(&p) {
+            let snippet = if content.len() > 1500 {
+                format!("{}\n... (truncated)", &content[..1500])
+            } else {
+                content
+            };
+            ctx.push_str(&format!("### Tech Stack Manifest ({})\n```\n{}\n```\n\n", file, snippet.trim()));
+        }
+    }
+
+    ctx.trim_end().to_string()
+}

apps/interfaces/tui/src/turn.rs

@@ -129,9 +129,13 @@ fn run_turn(params: TurnParams) {
 
     if let Some(root) = params.workspace_roots.first() {
         let tree = zesdex_infrastructure::utils::build_workspace_tree(root, 800);
+        let rich_ctx = zesdex_infrastructure::utils::build_rich_context(root);
+        
         sys_prompt.push_str("\n\nWorkspace structure:\n```\n");
         sys_prompt.push_str(&tree);
-        sys_prompt.push_str("\n```\n");
+        sys_prompt.push_str("\n```\n\n");
+        
+        sys_prompt.push_str(&rich_ctx);
     }
 
     let sys_msg = ChatMessage::system(sys_prompt);