Add mise check task for workspace: protocol validation

The pnpm workspace: protocol requires a version specifier (*, ^, or ~).
Using "workspace:" without a specifier is invalid but pnpm doesn't
report a clear error, which can cause issues with tools like moonrepo.

This adds a check:manifest:workspace-protocol task that detects invalid
patterns and fails the CI check if found.

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: moreal

mise.toml

@@ -46,6 +46,7 @@ depends = [
   "check:types",
   "check:md",
   "check-versions",
+  "check:manifest:workspace-protocol",
 ]
 
 [tasks."check:fmt"]
@@ -75,6 +76,42 @@ else
 fi
 '''
 
+[tasks."check:manifest:workspace-protocol"]
+description = "Check for invalid workspace: specifiers without version (*, ^, ~)"
+run = '''
+found=0
+for file in $(find . -name 'package.json' -not -path '*/node_modules/*'); do
+  invalid=$(jq -r '
+    [
+      (.dependencies // {}),
+      (.devDependencies // {}),
+      (.peerDependencies // {}),
+      (.optionalDependencies // {})
+    ]
+    | add
+    | to_entries[]
+    | select(.value == "workspace:")
+    | "  \(.key)"
+  ' "$file" 2>/dev/null)
+  if [ -n "$invalid" ]; then
+    if [ "$found" -eq 0 ]; then
+      echo "Error: Found invalid workspace: specifiers (missing *, ^, or ~):"
+      echo ""
+    fi
+    echo "$file:"
+    echo "$invalid"
+    found=1
+  fi
+done
+
+if [ "$found" -eq 1 ]; then
+  echo ""
+  echo "Valid formats: workspace:*, workspace:^, workspace:~"
+  exit 1
+fi
+echo "All workspace: specifiers are valid"
+'''
+
 [tasks.fmt]
 description = "Format the codebase"
 run = "deno fmt && hongdown --write"