[refactor] modularize code by moving logic to polyscribe crate; cleanup imports and remove redundant functions

tests/integration_aux.rs

@@ -1,6 +1,8 @@
 use std::process::Command;
 
-fn bin() -> &'static str { env!("CARGO_BIN_EXE_polyscribe") }
+fn bin() -> &'static str {
+    env!("CARGO_BIN_EXE_polyscribe")
+}
 
 #[test]
 fn aux_completions_bash_outputs_script() {
@@ -9,11 +11,21 @@ fn aux_completions_bash_outputs_script() {
         .arg("bash")
         .output()
         .expect("failed to run polyscribe completions bash");
-    assert!(out.status.success(), "completions bash exited with failure: {:?}", out.status);
+    assert!(
+        out.status.success(),
+        "completions bash exited with failure: {:?}",
+        out.status
+    );
     let stdout = String::from_utf8(out.stdout).expect("stdout not utf-8");
-    assert!(!stdout.trim().is_empty(), "completions bash stdout is empty");
+    assert!(
+        !stdout.trim().is_empty(),
+        "completions bash stdout is empty"
+    );
     // Heuristic: bash completion scripts often contain 'complete -F' lines
-    assert!(stdout.contains("complete") || stdout.contains("_polyscribe"), "bash completion script did not contain expected markers");
+    assert!(
+        stdout.contains("complete") || stdout.contains("_polyscribe"),
+        "bash completion script did not contain expected markers"
+    );
 }
 
 #[test]
@@ -23,11 +35,18 @@ fn aux_completions_zsh_outputs_script() {
         .arg("zsh")
         .output()
         .expect("failed to run polyscribe completions zsh");
-    assert!(out.status.success(), "completions zsh exited with failure: {:?}", out.status);
+    assert!(
+        out.status.success(),
+        "completions zsh exited with failure: {:?}",
+        out.status
+    );
     let stdout = String::from_utf8(out.stdout).expect("stdout not utf-8");
     assert!(!stdout.trim().is_empty(), "completions zsh stdout is empty");
     // Heuristic: zsh completion scripts often start with '#compdef'
-    assert!(stdout.contains("#compdef") || stdout.contains("#compdef polyscribe"), "zsh completion script did not contain expected markers");
+    assert!(
+        stdout.contains("#compdef") || stdout.contains("#compdef polyscribe"),
+        "zsh completion script did not contain expected markers"
+    );
 }
 
 #[test]
@@ -36,10 +55,21 @@ fn aux_man_outputs_roff() {
         .arg("man")
         .output()
         .expect("failed to run polyscribe man");
-    assert!(out.status.success(), "man exited with failure: {:?}", out.status);
+    assert!(
+        out.status.success(),
+        "man exited with failure: {:?}",
+        out.status
+    );
     let stdout = String::from_utf8(out.stdout).expect("stdout not utf-8");
     assert!(!stdout.trim().is_empty(), "man stdout is empty");
     // clap_mangen typically emits roff with .TH and/or section headers
-    let looks_like_roff = stdout.contains(".TH ") || stdout.starts_with(".TH") || stdout.contains(".SH NAME") || stdout.contains(".SH SYNOPSIS");
-    assert!(looks_like_roff, "man output does not look like a roff manpage; got: {}", &stdout.lines().take(3).collect::<Vec<_>>().join(" | "));
+    let looks_like_roff = stdout.contains(".TH ")
+        || stdout.starts_with(".TH")
+        || stdout.contains(".SH NAME")
+        || stdout.contains(".SH SYNOPSIS");
+    assert!(
+        looks_like_roff,
+        "man output does not look like a roff manpage; got: {}",
+        &stdout.lines().take(3).collect::<Vec<_>>().join(" | ")
+    );
 }