fix(spells): load complete retail DAT catalog

Replace the incomplete 3,956-row production CSV with one immutable projection of all 6,266 records in portal.dat. Preserve retail formula targeting, shared Spellbook/MagicRuntime metadata ownership, and fail startup when the required SpellTable is absent.

Co-authored-by: OpenAI Codex <codex@openai.com>

tests/AcDream.Core.Tests/Spells/RetailSpellFormulaTests.cs

@@ -16,6 +16,34 @@ public sealed class RetailSpellFormulaTests
         => Assert.Equal(expected,
             RetailSpellFormula.InqSpellLevelByRoughHeuristic([component]));
 
+    [Theory]
+    [InlineData(0x31u, 0x10u)]
+    [InlineData(0x39u, 0x00088B8Fu)]
+    [InlineData(0x3Bu, 0x10010000u)]
+    [InlineData(0xBEu, 0x10u)]
+    [InlineData(0x30u, 0u)]
+    public void TargetComponent_UsesRetailItemTypeMask(uint component, uint expected)
+        => Assert.Equal(expected,
+            RetailSpellFormula.GetTargetTypeFromComponentId(component));
+
+    [Fact]
+    public void TargetingType_UsesTargetFormulaSlotsOnly()
+    {
+        Assert.Equal(0x10u,
+            RetailSpellFormula.GetTargetingType([1u, 2u, 3u, 4u, 5u, 0x31u]));
+        Assert.Equal(0u,
+            RetailSpellFormula.GetTargetingType([1u, 2u, 3u, 0x31u]));
+    }
+
+    [Fact]
+    public void TargetingType_MapsFinalPopulatedFormulaComponent()
+    {
+        Assert.Equal(0x10u,
+            RetailSpellFormula.GetTargetingType([1u, 2u, 3u, 4u, 0x39u, 0x31u]));
+        Assert.Equal(0x00088B8Fu,
+            RetailSpellFormula.GetTargetingType([1u, 2u, 3u, 4u, 0x39u, 0u, 0x31u]));
+    }
+
     [Fact]
     public void CustomizeForAccount_IsDeterministic_AndOnlyChangesTapers()
     {

tests/AcDream.Core.Tests/Spells/SpellTableTests.cs

@@ -27,6 +27,17 @@ public sealed class SpellTableTests
         Assert.False(SpellTable.Empty.TryGet(1u, out _));
     }
 
+    [Fact]
+    public void Create_RejectsDuplicateSpellIds()
+    {
+        SpellMetadata spell = new(
+            1u, "One", "War Magic", 0u, 0u, "", 0f, 0,
+            false, false, "", 0, 0, 0u, 0, false, false, true,
+            0f, 0u, 0u, 0u, 0);
+
+        Assert.Throws<ArgumentException>(() => SpellTable.Create([spell, spell]));
+    }
+
     [Fact]
     public void LoadFromReader_HeaderOnly_EmptyTable()
     {

tests/AcDream.Core.Tests/Spells/SpellbookTests.cs

@@ -5,6 +5,25 @@ namespace AcDream.Core.Tests.Spells;
 
 public sealed class SpellbookTests
 {
+    [Fact]
+    public void InstallMetadata_InstallsOnceAndRefreshesExistingLearnedState()
+    {
+        var book = new Spellbook();
+        book.OnSpellLearned(1u);
+        int changes = 0;
+        book.SpellbookChanged += () => changes++;
+        SpellTable table = SpellTable.Create([TestSpell(1u)]);
+
+        book.InstallMetadata(table);
+
+        Assert.Same(table, book.Metadata);
+        Assert.True(book.TryGetMetadata(1u, out _));
+        Assert.Equal(1, changes);
+        book.InstallMetadata(table);
+        Assert.Throws<InvalidOperationException>(
+            () => book.InstallMetadata(SpellTable.Empty));
+    }
+
     [Fact]
     public void OnSpellLearned_FiresEvent_Idempotent()
     {
@@ -187,4 +206,9 @@ public sealed class SpellbookTests
             StartTime: 10d,
             SpellCategory: category,
             PowerLevel: 7u);
+
+    private static SpellMetadata TestSpell(uint spellId) => new(
+        spellId, "Test", "War Magic", 0u, 0u, "", 0f, 0,
+        false, false, "", 0, 0, 0u, 0, false, false, true,
+        0f, 0u, 0u, 0u, 0);
 }