fix: use cross-platform wrapper for wt CLI in Claude Code integration

.claude-plugin/hooks/hooks.json

@@ -5,7 +5,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "wt config state marker set 🤖 || true"
+            "command": "bash \"${CLAUDE_PLUGIN_ROOT}/.claude-plugin/hooks/wt.sh\" config state marker set 🤖 || true"
           }
         ]
       }
@@ -16,7 +16,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "wt config state marker set 💬 || true"
+            "command": "bash \"${CLAUDE_PLUGIN_ROOT}/.claude-plugin/hooks/wt.sh\" config state marker set 💬 || true"
           }
         ]
       }
@@ -27,7 +27,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "wt config state marker clear || true"
+            "command": "bash \"${CLAUDE_PLUGIN_ROOT}/.claude-plugin/hooks/wt.sh\" config state marker clear || true"
           }
         ]
       }

.claude-plugin/hooks/wt.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Cross-platform wrapper for the worktrunk CLI.
+# If WORKTRUNK_BIN is set, uses that path exclusively.
+# Otherwise, on Windows (MSYS/Cygwin), prefers git-wt.exe over wt and
+# rejects wt if it resolves to Windows Terminal (.../WindowsApps/wt.exe).
+# On other platforms, uses wt directly.
+# Usage: wt.sh [args...]
+
+if [[ -n "$WORKTRUNK_BIN" ]]; then
+    if ! command -v "$WORKTRUNK_BIN" >/dev/null 2>&1; then
+        echo "worktrunk: WORKTRUNK_BIN is set to '$WORKTRUNK_BIN' but it was not found" >&2
+        exit 1
+    fi
+    WT="$WORKTRUNK_BIN"
+elif [[ "$(uname -o 2>/dev/null)" =~ ^(Msys|Cygwin)$ ]]; then
+    # check for bash on Windows (on Windows, Claude Code defaults to Git Bash)
+    if command -v git-wt.exe >/dev/null 2>&1; then
+        # prefer git-wt over wt if available
+        WT=git-wt.exe
+    elif command -v wt >/dev/null 2>&1; then
+        # reject wt if it's the Windows Terminal alias
+        if [[ "$(command -v wt)" == *WindowsApps* ]]; then
+            echo "worktrunk: 'wt' resolves to Windows Terminal; install worktrunk as git-wt.exe or remove the Windows Terminal alias. See https://worktrunk.dev/worktrunk/#install" >&2
+            exit 1
+        fi
+
+        WT=wt
+    fi
+else
+    # non-Windows, always use wt
+    WT=wt
+fi
+
+if [[ -z "$WT" ]] || ! command -v "$WT" >/dev/null 2>&1; then
+    echo "worktrunk: could not find 'wt' in PATH" >&2
+    exit 1
+fi
+
+"$WT" "$@"