Adv 2.0 D&D Phase 11 D4c: Tier 3 zone flavor files

New additive flavor files (zone_manor_blackspire_flavor.go,
zone_underforge_flavor.go) with elite-room intros, boss ability
callouts, and zone lore. Manor reuses RoomEntryHauntedManor from
twinbee_gm_flavor.go; Underforge had no canonical RoomEntry/BossEntry
pools yet, so both are defined in the new zone file.

  Aldric Blackspire: Multiattack (life drain) / Charm / Children of the
    Night / Mist Form / Phase Two
  Emberlord Thyrak: Molten Strike / Forge Breath / Living Forge /
    Construct Resilience / Phase Two

Wires zoneRoomEntryPool, bossEntryPool, zoneLorePool,
bossSignaturePool, and eliteRoomEntryPool to the new tier-3 pools.
Adds Tier 3 routing tests for boss-entry, elite line, lore, and
room-entry overlays.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

internal/plugin/dnd_zone_narration.go

@@ -81,6 +81,8 @@ func zoneRoomEntryPool(zoneID ZoneID) []string {
 		return append(append([]string{}, flavor.RoomEntrySunkenTemple...), flavor.RoomEntryGeneric...)
 	case ZoneManorBlackspire:
 		return append(append([]string{}, flavor.RoomEntryHauntedManor...), flavor.RoomEntryGeneric...)
+	case ZoneUnderforge:
+		return append(append([]string{}, flavor.RoomEntryUnderforge...), flavor.RoomEntryGeneric...)
 	case ZoneUnderdark:
 		return append(append([]string{}, flavor.RoomEntryUnderdark...), flavor.RoomEntryGeneric...)
 	case ZoneDragonsLair:
@@ -101,6 +103,10 @@ func bossEntryPool(zoneID ZoneID) []string {
 		return flavor.BossEntryHollowKing
 	case ZoneSunkenTemple:
 		return flavor.BossEntryDreamingAboleth
+	case ZoneManorBlackspire:
+		return flavor.BossEntryAldricBlackspire
+	case ZoneUnderforge:
+		return flavor.BossEntryEmberlordThyrak
 	case ZoneDragonsLair:
 		return flavor.BossEntryInfernax
 	case ZoneAbyssPortal:
@@ -155,6 +161,10 @@ func zoneLorePool(zoneID ZoneID) []string {
 		return append(append([]string{}, flavor.LoreLinesForestShadows...), flavor.LoreLines...)
 	case ZoneSunkenTemple:
 		return append(append([]string{}, flavor.LoreLinesSunkenTemple...), flavor.LoreLines...)
+	case ZoneManorBlackspire:
+		return append(append([]string{}, flavor.LoreLinesManorBlackspire...), flavor.LoreLines...)
+	case ZoneUnderforge:
+		return append(append([]string{}, flavor.LoreLinesUnderforge...), flavor.LoreLines...)
 	}
 	return flavor.LoreLines
 }
@@ -172,6 +182,10 @@ func bossSignaturePool(zoneID ZoneID) []string {
 		return flavor.HollowKingSignatureCallouts
 	case ZoneSunkenTemple:
 		return flavor.AbolethSignatureCallouts
+	case ZoneManorBlackspire:
+		return flavor.AldricSignatureCallouts
+	case ZoneUnderforge:
+		return flavor.ThyrakSignatureCallouts
 	}
 	return nil
 }
@@ -188,6 +202,10 @@ func eliteRoomEntryPool(zoneID ZoneID) []string {
 		return flavor.EliteRoomEntryForestShadows
 	case ZoneSunkenTemple:
 		return flavor.EliteRoomEntrySunkenTemple
+	case ZoneManorBlackspire:
+		return flavor.EliteRoomEntryManorBlackspire
+	case ZoneUnderforge:
+		return flavor.EliteRoomEntryUnderforge
 	}
 	return nil
 }

internal/plugin/dnd_zone_narration_test.go

@@ -294,6 +294,64 @@ func TestRoomEntryPool_Tier2PrependsZoneSpecific(t *testing.T) {
 	}
 }
 
+// ── Phase 11 D4c — Tier 3 zone flavor file routing ──────────────────────────
+
+func TestComposeBossEntry_AppendsAbilityCalloutForTier3(t *testing.T) {
+	got := composeBossEntry(ZoneManorBlackspire, "run-d4c", 5)
+	if !strings.Contains(got, "Aldric") {
+		t.Errorf("Manor boss-entry should mention Aldric: %q", got)
+	}
+	if n := strings.Count(got, "🎭 **TwinBee:**"); n != 2 {
+		t.Errorf("Manor boss-entry expected 2 TwinBee blocks (entry+callout), got %d:\n%s", n, got)
+	}
+
+	got = composeBossEntry(ZoneUnderforge, "run-d4c", 5)
+	if !strings.Contains(got, "Thyrak") {
+		t.Errorf("Underforge boss-entry should mention Thyrak: %q", got)
+	}
+	if n := strings.Count(got, "🎭 **TwinBee:**"); n != 2 {
+		t.Errorf("Underforge boss-entry expected 2 TwinBee blocks (entry+callout), got %d:\n%s", n, got)
+	}
+}
+
+func TestEliteRoomEntryLine_Tier3Routes(t *testing.T) {
+	m := eliteRoomEntryLine(ZoneManorBlackspire, "run-elite-t3", 3)
+	if m == "" || !strings.HasPrefix(m, "🎭 **TwinBee:**") {
+		t.Errorf("Manor elite line missing/no prefix: %q", m)
+	}
+	u := eliteRoomEntryLine(ZoneUnderforge, "run-elite-t3", 3)
+	if u == "" || !strings.HasPrefix(u, "🎭 **TwinBee:**") {
+		t.Errorf("Underforge elite line missing/no prefix: %q", u)
+	}
+	if m == u {
+		t.Errorf("Manor and Underforge elite lines collided on same salt")
+	}
+}
+
+func TestZoneLorePool_Tier3PrependsZoneSpecific(t *testing.T) {
+	m := zoneLorePool(ZoneManorBlackspire)
+	if len(m) <= len(flavor.LoreLines) {
+		t.Errorf("Manor lore pool should be larger than generic; got %d vs generic %d",
+			len(m), len(flavor.LoreLines))
+	}
+	u := zoneLorePool(ZoneUnderforge)
+	if len(u) <= len(flavor.LoreLines) {
+		t.Errorf("Underforge lore pool should be larger than generic; got %d vs generic %d",
+			len(u), len(flavor.LoreLines))
+	}
+}
+
+func TestRoomEntryPool_Tier3PrependsZoneSpecific(t *testing.T) {
+	m := zoneRoomEntryPool(ZoneManorBlackspire)
+	if len(m) <= len(flavor.RoomEntryGeneric) {
+		t.Errorf("Manor room-entry pool should overlay zone-specific lines; got %d", len(m))
+	}
+	u := zoneRoomEntryPool(ZoneUnderforge)
+	if len(u) <= len(flavor.RoomEntryGeneric) {
+		t.Errorf("Underforge room-entry pool should overlay zone-specific lines; got %d", len(u))
+	}
+}
+
 func TestZoneCmd_AdvanceFinalRoomBumpsMood(t *testing.T) {
 	setupAuditTestDB(t)
 	uid := id.UserID("@zone-mood-complete:example")