Adv 2.0 D&D Phase 12 E2d: Fortified Camp branch + overnight rest effects

§5.1 fortified camp unlocked in !camp, gated on exp.BossDefeated for
now (cache-site waypoints land in E3+). +2 SU cost was already in the
E1e cost table; this commit just stops rejecting the type.

§3 / §5.1 / §8.1 overnight rest applied at briefing rollover via
processOvernightCamp:
  - rough: HP floor of HPMax/2 (no spell refresh)
  - standard: full HP, exhaustion -1, refreshAllResources +
    refreshSpellSlots
  - fortified / base: standard rest + 1d6 HP bonus on wake +
    threat-clock -5 (§8.1 modifier)

The camp auto-breaks once the rest applies — staying camped multi-day
isn't a thing in the spec; the player can re-pitch on the next night
if they want to. Briefing body now includes a 💤 line summarizing the
HP/threat delta from the night's rest.

Combat-driven side of fortified ('+1d6 HP on wake' as a rare flavor
event) currently surfaces as the rest summary; a peaceful-night TwinBee
narration variant could come later if we add a dedicated pool — for
now reusing the existing CampEstablished ambience suffices.

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

internal/plugin/dnd_expedition_camp_e2d_test.go

@@ -0,0 +1,145 @@
+package plugin
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"gogobee/internal/db"
+	"maunium.net/go/mautrix/id"
+)
+
+// Phase 12 E2d — Fortified camp branch.
+
+func TestCampCmd_FortifiedRequiresBossDefeated(t *testing.T) {
+	setupZoneRunTestDB(t)
+	uid := id.UserID("@camp-fortified-pre:example")
+	campTestCharacter(t, uid, 1)
+	defer cleanupExpeditions(uid)
+
+	if _, err := startExpedition(uid, ZoneGoblinWarrens, "",
+		ExpeditionSupplies{Current: 5, Max: 5, DailyBurn: 1, HarshMod: 1}); err != nil {
+		t.Fatal(err)
+	}
+	p := &AdventurePlugin{}
+	if err := p.handleCampCmd(MessageContext{Sender: uid}, "fortified"); err != nil {
+		t.Fatal(err)
+	}
+	got, _ := getActiveExpedition(uid)
+	if got.Camp != nil && got.Camp.Active {
+		t.Error("fortified camp should be rejected before boss defeated")
+	}
+}
+
+func TestCampCmd_FortifiedAfterBossSucceeds(t *testing.T) {
+	setupZoneRunTestDB(t)
+	uid := id.UserID("@camp-fortified-post:example")
+	campTestCharacter(t, uid, 1)
+	defer cleanupExpeditions(uid)
+
+	exp, err := startExpedition(uid, ZoneGoblinWarrens, "",
+		ExpeditionSupplies{Current: 5, Max: 5, DailyBurn: 1, HarshMod: 1})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := db.Get().Exec(`UPDATE dnd_expedition SET boss_defeated = 1 WHERE expedition_id = ?`, exp.ID); err != nil {
+		t.Fatal(err)
+	}
+	p := &AdventurePlugin{}
+	if err := p.handleCampCmd(MessageContext{Sender: uid}, "fortified"); err != nil {
+		t.Fatal(err)
+	}
+	got, _ := getActiveExpedition(uid)
+	if got.Camp == nil || !got.Camp.Active || got.Camp.Type != CampTypeFortified {
+		t.Errorf("expected active fortified camp, got %+v", got.Camp)
+	}
+	if got.Supplies.Current != 3 { // 5 − 2 SU
+		t.Errorf("supplies after fortified pitch = %v, want 3", got.Supplies.Current)
+	}
+}
+
+func TestProcessOvernightCamp_StandardRefillsHP(t *testing.T) {
+	setupZoneRunTestDB(t)
+	uid := id.UserID("@camp-rest-std:example")
+	campTestCharacter(t, uid, 1)
+	defer cleanupExpeditions(uid)
+
+	c, _ := LoadDnDCharacter(uid)
+	c.HPCurrent = 5
+	_ = SaveDnDCharacter(c)
+
+	exp, _ := startExpedition(uid, ZoneGoblinWarrens, "",
+		ExpeditionSupplies{Current: 5, Max: 5, DailyBurn: 1, HarshMod: 1})
+	exp.Camp = &CampState{Active: true, Type: CampTypeStandard, EstablishedAt: time.Now().UTC()}
+	_ = updateCamp(exp.ID, exp.Camp)
+
+	summary := processOvernightCamp(exp)
+	if !strings.Contains(strings.ToLower(summary), "long rest") {
+		t.Errorf("standard rest summary = %q", summary)
+	}
+	got, _ := LoadDnDCharacter(uid)
+	if got.HPCurrent != got.HPMax {
+		t.Errorf("HP after standard rest = %d, want max %d", got.HPCurrent, got.HPMax)
+	}
+	postExp, _ := getExpedition(exp.ID)
+	if postExp.Camp != nil {
+		t.Error("camp should auto-break after rest")
+	}
+}
+
+func TestProcessOvernightCamp_FortifiedReducesThreatAndAddsBonus(t *testing.T) {
+	setupZoneRunTestDB(t)
+	uid := id.UserID("@camp-rest-fort:example")
+	campTestCharacter(t, uid, 1)
+	defer cleanupExpeditions(uid)
+
+	c, _ := LoadDnDCharacter(uid)
+	c.HPCurrent = c.HPMax // already full; bonus would clip at max
+	c.HPMax = 30
+	c.HPCurrent = 30
+	_ = SaveDnDCharacter(c)
+
+	exp, _ := startExpedition(uid, ZoneGoblinWarrens, "",
+		ExpeditionSupplies{Current: 5, Max: 5, DailyBurn: 1, HarshMod: 1})
+	if err := applyThreatDelta(exp.ID, 40, "seed"); err != nil {
+		t.Fatal(err)
+	}
+	exp, _ = getExpedition(exp.ID)
+	exp.Camp = &CampState{Active: true, Type: CampTypeFortified, EstablishedAt: time.Now().UTC()}
+	_ = updateCamp(exp.ID, exp.Camp)
+
+	summary := processOvernightCamp(exp)
+	if !strings.Contains(strings.ToLower(summary), "fortified rest") {
+		t.Errorf("fortified rest summary = %q", summary)
+	}
+	postExp, _ := getExpedition(exp.ID)
+	if postExp.ThreatLevel != 35 {
+		t.Errorf("threat after fortified rest = %d, want 35", postExp.ThreatLevel)
+	}
+	if postExp.Camp != nil {
+		t.Error("camp should auto-break after rest")
+	}
+}
+
+func TestProcessOvernightCamp_RoughHalfHPFloor(t *testing.T) {
+	setupZoneRunTestDB(t)
+	uid := id.UserID("@camp-rest-rough:example")
+	campTestCharacter(t, uid, 1)
+	defer cleanupExpeditions(uid)
+
+	c, _ := LoadDnDCharacter(uid)
+	c.HPMax = 20
+	c.HPCurrent = 4 // way under half
+	_ = SaveDnDCharacter(c)
+
+	exp, _ := startExpedition(uid, ZoneGoblinWarrens, "",
+		ExpeditionSupplies{Current: 5, Max: 5, DailyBurn: 1, HarshMod: 1})
+	exp.Camp = &CampState{Active: true, Type: CampTypeRough, EstablishedAt: time.Now().UTC()}
+	_ = updateCamp(exp.ID, exp.Camp)
+
+	_ = processOvernightCamp(exp)
+	got, _ := LoadDnDCharacter(uid)
+	if got.HPCurrent != 10 {
+		t.Errorf("rough rest HP = %d, want 10 (half of 20)", got.HPCurrent)
+	}
+}