Detect tier across WSL roots, not just native home (\\wsl$\<distro>\... probe)

src-tauri/src/commands.rs

@@ -1,9 +1,11 @@
 //! Tauri command surface — every JS-callable function lives here.
 
+use std::path::PathBuf;
+
 use crate::paths::{list_wsl_distros, resolve_roots, ResolvedRoots};
 use crate::settings::{save as save_settings, Caps, Settings};
 use crate::state::SharedState;
-use crate::tier::{detect as detect_tier, PlanTier};
+use crate::tier::{detect_in as detect_tier_in, PlanTier};
 use crate::usage::{build_snapshot, UsageSnapshot};
 use crate::watch::refresh_and_emit;
 
@@ -84,8 +86,27 @@ pub struct TierInfo {
 }
 
 #[tauri::command]
-pub async fn detect_plan_tier() -> Result<TierInfo, String> {
-    let tier = detect_tier();
+pub async fn detect_plan_tier(
+    state: tauri::State<'_, SharedState>,
+) -> Result<TierInfo, String> {
+    // Each resolved root is a `<base>/.claude/projects` path. The tier
+    // file lives in the parent (`<base>/.claude/`) — so check those, plus
+    // the native home as a fallback, so this works whether Claude Code
+    // runs in WSL (UNC paths) or natively.
+    let mut candidates: Vec<PathBuf> = state
+        .roots
+        .read()
+        .iter()
+        .filter_map(|r| r.parent().map(PathBuf::from))
+        .collect();
+    if let Some(home) = dirs::home_dir() {
+        candidates.push(home.join(".claude"));
+    }
+    // Dedupe (canonicalize is unreliable on UNC paths, so compare raw).
+    candidates.sort();
+    candidates.dedup();
+
+    let tier = detect_tier_in(&candidates);
     let label = tier.label();
     let recommended_caps = tier.caps();
     Ok(TierInfo { tier, label, recommended_caps })