fix: resume subcommand writes to AGF_CMD_FILE (v0.6.5)

`agf resume <query>` was printing the command to stdout instead of writing
to AGF_CMD_FILE, so the shell wrapper couldn't eval it.

Author: subinium

.gitignore

@@ -6,3 +6,4 @@
 .idea/
 .vscode/
 *.iml
+CLAUDE.md

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "agf"
-version = "0.6.4"
+version = "0.6.5"
 edition = "2021"
 description = "AI Agent Session Finder TUI — unified launcher for Claude Code, Codex, and OpenCode sessions"
 license = "MIT"

Cargo.toml

@@ -66,7 +66,11 @@ fn main() -> anyhow::Result<()> {
 
             let best = &sessions[results[0].index];
             if let Some(cmd) = action::generate_command(best, model::Action::Resume, None) {
-                println!("{cmd}");
+                if let Ok(file) = std::env::var("AGF_CMD_FILE") {
+                    std::fs::write(&file, &cmd)?;
+                } else {
+                    println!("{cmd}");
+                }
             }
             return Ok(());
         }