Add Enemies section: D&D stat-block table + detail/edit pages

- Enemy entity: full 5e stat block (size/type/subtype/alignment, AC, HP,
  speed, six ability scores, CR/XP/prof, saves/skills/senses/languages,
  damage & condition modifiers, traits/actions/bonus/reactions/legendary,
  description, source) plus a DM game-notes field and updated_at.
- CreatureSize / CreatureType enums.
- /enemies: server-side DataTable (name, size, type, CR, AC, HP, notes),
  "Add enemy" button.
- /enemies/{id}: stat block rendered read-only + editable game notes.
- /enemies/new and /enemies/{id}/edit: the full stat-block form (no notes).
- "Enemies" nav item between NPC's and Storyline.
- Table left empty on purpose.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/Form/EnemyGameNotesType.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Form;
+
+use App\Entity\Enemy;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+/**
+ * The only editable thing on the Enemy detail page: the DM's live play notes.
+ */
+class EnemyGameNotesType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder->add('gameNotes', TextareaType::class, [
+            'required' => false,
+            'label' => false,
+            'attr' => ['rows' => 14, 'placeholder' => 'How this enemy played at the table…'],
+        ]);
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults(['data_class' => Enemy::class]);
+    }
+}

src/Form/EnemyType.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Form;
+
+use App\Entity\Enemy;
+use App\Enum\CreatureSize;
+use App\Enum\CreatureType;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\EnumType;
+use Symfony\Component\Form\Extension\Core\Type\IntegerType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class EnemyType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $enum = static fn (string $class) => [
+            'class' => $class,
+            'choice_label' => static fn ($case) => $case->value,
+        ];
+        $opt = ['required' => false];
+        $ability = ['attr' => ['min' => 1, 'max' => 30]];
+        $block = ['required' => false, 'attr' => ['rows' => 3]];
+
+        $builder
+            // Identity
+            ->add('name', TextType::class)
+            ->add('size', EnumType::class, $enum(CreatureSize::class))
+            ->add('type', EnumType::class, $enum(CreatureType::class))
+            ->add('subtype', TextType::class, $opt + ['help' => 'e.g. goblinoid, shapechanger'])
+            ->add('alignment', TextType::class, $opt + ['help' => 'e.g. chaotic evil, unaligned'])
+            // Defenses
+            ->add('armorClass', IntegerType::class)
+            ->add('armorClassNote', TextType::class, $opt + ['label' => 'AC note', 'help' => 'e.g. natural armor'])
+            ->add('hitPoints', IntegerType::class)
+            ->add('hitDice', TextType::class, $opt + ['help' => 'e.g. 7d8 + 14'])
+            ->add('speed', TextType::class, $opt + ['help' => 'e.g. 30 ft., fly 60 ft.'])
+            // Abilities
+            ->add('strength', IntegerType::class, $ability)
+            ->add('dexterity', IntegerType::class, $ability)
+            ->add('constitution', IntegerType::class, $ability)
+            ->add('intelligence', IntegerType::class, $ability)
+            ->add('wisdom', IntegerType::class, $ability)
+            ->add('charisma', IntegerType::class, $ability)
+            // Challenge
+            ->add('challengeRating', TextType::class, $opt + ['label' => 'CR', 'help' => 'e.g. 1/4, 5'])
+            ->add('experiencePoints', IntegerType::class, $opt + ['label' => 'XP'])
+            ->add('proficiencyBonus', IntegerType::class, $opt)
+            // Secondary stats
+            ->add('savingThrows', TextType::class, $opt + ['help' => 'e.g. Dex +5, Con +6'])
+            ->add('skills', TextType::class, $opt + ['help' => 'e.g. Perception +4, Stealth +6'])
+            ->add('damageVulnerabilities', TextType::class, $opt)
+            ->add('damageResistances', TextType::class, $opt)
+            ->add('damageImmunities', TextType::class, $opt)
+            ->add('conditionImmunities', TextType::class, $opt)
+            ->add('senses', TextType::class, $opt + ['help' => 'e.g. darkvision 60 ft., passive Perception 12'])
+            ->add('languages', TextType::class, $opt)
+            // Text blocks
+            ->add('traits', TextareaType::class, $block + ['help' => 'Special abilities'])
+            ->add('actions', TextareaType::class, $block)
+            ->add('bonusActions', TextareaType::class, $block)
+            ->add('reactions', TextareaType::class, $block)
+            ->add('legendaryActions', TextareaType::class, $block)
+            ->add('description', TextareaType::class, ['required' => false, 'attr' => ['rows' => 4], 'help' => 'Lore / flavour'])
+            ->add('source', TextType::class, $opt + ['help' => 'e.g. Monster Manual p. 195, homebrew']);
+        // gameNotes lives on the detail page, not this form.
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults(['data_class' => Enemy::class]);
+    }
+}