Callsites no longer manually create_dir_all; paths.rs owns it.

Assisted-by: Claude Opus 4.6 via pi

diff --git a/src/lockfile.rs b/src/lockfile.rs
index e22312e..1c97c4d 100644
--- a/src/lockfile.rs
+++ b/src/lockfile.rs
@@ -16,7 +16,7 @@ pub struct LockedPlugin {
 }
 
 pub fn load() -> Result<Lockfile> {
-    let path = crate::paths::lockfile_path();
+    let path = crate::paths::lockfile_path()?;
     let contents = std::fs::read_to_string(&path)
         .with_context(|| format!("failed to read lockfile: {}", path.display()))?;
     let lockfile: Lockfile = serde_yml::from_str(&contents)
@@ -25,11 +25,7 @@ pub fn load() -> Result<Lockfile> {
 }
 
 pub fn save(lockfile: &Lockfile) -> Result<()> {
-    let path = crate::paths::lockfile_path();
-    if let Some(parent) = path.parent() {
-        std::fs::create_dir_all(parent)
-            .with_context(|| format!("failed to create data dir: {}", parent.display()))?;
-    }
+    let path = crate::paths::lockfile_path()?;
     let mut sorted = lockfile.clone();
     sorted.plugins.sort_by(|a, b| a.name.cmp(&b.name));
     let contents = serde_yml::to_string(&sorted).context("failed to serialize lockfile")?;
diff --git a/src/main.rs b/src/main.rs
index c1d9909..e26645a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -105,9 +105,7 @@ fn do_update(names: &[String]) -> Result<()> {
         (plugins, lockfile)
     };
 
-    let repos_dir = paths::repos_dir();
-    std::fs::create_dir_all(&repos_dir)
-        .with_context(|| format!("failed to create repos dir: {}", repos_dir.display()))?;
+    let repos_dir = paths::repos_dir()?;
 
     for plugin in &plugins {
         info!("updating {}...", plugin.name);
@@ -144,11 +142,8 @@ fn do_update(names: &[String]) -> Result<()> {
 fn do_install() -> Result<()> {
     let lockfile = lockfile::load().context("no lockfile found — run `pinch update` first")?;
 
-    let repos_dir = paths::repos_dir();
-    let skills_dir = paths::skills_dir();
-    std::fs::create_dir_all(&skills_dir)
-        .with_context(|| format!("failed to create skills dir: {}", skills_dir.display()))?;
-
+    let repos_dir = paths::repos_dir()?;
+    let skills_dir = paths::skills_dir()?;
     let cache_dir = paths::cache_dir();
 
     for plugin in &lockfile.plugins {
diff --git a/src/paths.rs b/src/paths.rs
index c147db0..de884f0 100644
--- a/src/paths.rs
+++ b/src/paths.rs
@@ -1,5 +1,6 @@
 use std::path::PathBuf;
 
+use color_eyre::eyre::{Context, Result};
 use xdg::BaseDirectories;
 
 fn base_dirs() -> BaseDirectories {
@@ -13,26 +14,29 @@ pub fn config_dir() -> PathBuf {
         .join("conf.d")
 }
 
-pub fn cache_dir() -> PathBuf {
+pub fn repos_dir() -> Result<PathBuf> {
     base_dirs()
-        .get_cache_home()
-        .expect("XDG cache home not set")
-}
-
-pub fn repos_dir() -> PathBuf {
-    cache_dir().join("repos")
+        .create_cache_directory("repos")
+        .context("failed to create repos dir")
 }
 
-pub fn data_dir() -> PathBuf {
-    base_dirs().get_data_home().expect("XDG data home not set")
+pub fn lockfile_path() -> Result<PathBuf> {
+    base_dirs()
+        .place_data_file("pinch-lock.yml")
+        .context("failed to create data dir")
 }
 
-pub fn lockfile_path() -> PathBuf {
-    data_dir().join("pinch-lock.yml")
+pub fn skills_dir() -> Result<PathBuf> {
+    let path = home_dir().join(".claude").join("skills");
+    std::fs::create_dir_all(&path)
+        .with_context(|| format!("failed to create skills dir: {}", path.display()))?;
+    Ok(path)
 }
 
-pub fn skills_dir() -> PathBuf {
-    home_dir().join(".claude").join("skills")
+pub fn cache_dir() -> PathBuf {
+    base_dirs()
+        .get_cache_home()
+        .expect("XDG cache home not set")
 }
 
 fn home_dir() -> PathBuf {