Align repo config with global development standards

- Add missing tsconfig strictness flags (noUncheckedIndexedAccess,
  exactOptionalPropertyTypes, noImplicitOverride,
  noPropertyAccessFromIndexSignature) and fix all resulting type errors
- Replace ESLint/Prettier with oxlint 1.48.0 and oxfmt 0.33.0
- Pin all frontend and backend dependencies to exact versions
- Pin GitHub Actions to SHA hashes with persist-credentials: false
- Fix CI Python version mismatch (3.12 -> 3.14) and ruff target-version
- Add vitest 4.0.18 with jsdom environment for frontend testing
- Add ty 0.0.17 for Python type checking (non-blocking in CI)
- Add actionlint and zizmor CI job for workflow linting and security audit
- Add Dependabot config for npm, pip, and github-actions
- Update CLAUDE.md and pre-commit hooks to reflect new tooling
- Ignore Claude Code sandbox artifacts in gitignore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/TransferModal.tsx

@@ -8,15 +8,8 @@ interface TransferModalProps {
   isPending: boolean
 }
 
-export function TransferModal({
-  hofTeam,
-  onSubmit,
-  onSkip,
-  isPending,
-}: TransferModalProps) {
-  const [selected, setSelected] = useState<Set<number>>(
-    () => new Set(hofTeam.map((e) => e.id))
-  )
+export function TransferModal({ hofTeam, onSubmit, onSkip, isPending }: TransferModalProps) {
+  const [selected, setSelected] = useState<Set<number>>(() => new Set(hofTeam.map((e) => e.id)))
 
   const toggle = (id: number) => {
     setSelected((prev) => {
@@ -39,8 +32,8 @@ export function TransferModal({
             Transfer Pokemon to Next Leg
           </h2>
           <p className="text-sm text-gray-500 dark:text-gray-400 mt-1">
-            Selected Pokemon will be bred down to their base form and appear as
-            level 1 encounters in the next leg.
+            Selected Pokemon will be bred down to their base form and appear as level 1 encounters
+            in the next leg.
           </p>
         </div>
 
@@ -69,20 +62,16 @@ export function TransferModal({
                     />
                   ) : (
                     <div className="w-14 h-14 rounded-full bg-gray-200 dark:bg-gray-600 flex items-center justify-center text-lg font-bold">
-                      {displayPokemon.name[0].toUpperCase()}
+                      {displayPokemon.name[0]?.toUpperCase()}
                     </div>
                   )}
                   <span className="text-xs font-medium text-gray-700 dark:text-gray-300 mt-1 capitalize">
                     {enc.nickname || displayPokemon.name}
                   </span>
                   {enc.nickname && (
-                    <span className="text-[10px] text-gray-400">
-                      {displayPokemon.name}
-                    </span>
+                    <span className="text-[10px] text-gray-400">{displayPokemon.name}</span>
                   )}
-                  <span className="text-[10px] text-gray-400 mt-0.5">
-                    {enc.route.name}
-                  </span>
+                  <span className="text-[10px] text-gray-400 mt-0.5">{enc.route.name}</span>
                 </button>
               )
             })}