feat: increase turn timeout to 10s and expand help screen

- Turn timeout 5s → 10s for more comfortable gameplay
- Help screen now covers: lobby, exploration, combat, shop, classes,
  multiplayer tips, and general tips including skill tree controls

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config/config.go

@@ -63,7 +63,7 @@ func defaults() Config {
 	return Config{
 		Server: ServerConfig{SSHPort: 2222, HTTPPort: 8080},
 		Game: GameConfig{
-			TurnTimeoutSec: 5, MaxPlayers: 4, MaxFloors: 20,
+			TurnTimeoutSec: 10, MaxPlayers: 4, MaxFloors: 20,
 			CoopBonus: 0.10, InventoryLimit: 10, SkillUses: 3,
 		},
 		Combat: CombatConfig{FleeChance: 0.50, MonsterScaling: 1.15, SoloHPReduction: 0.50},

config/config_test.go

@@ -16,8 +16,8 @@ func TestLoadDefaults(t *testing.T) {
 	if cfg.Server.HTTPPort != 8080 {
 		t.Errorf("expected HTTP port 8080, got %d", cfg.Server.HTTPPort)
 	}
-	if cfg.Game.TurnTimeoutSec != 5 {
+	if cfg.Game.TurnTimeoutSec != 10 {
-		t.Errorf("expected turn timeout 5, got %d", cfg.Game.TurnTimeoutSec)
+		t.Errorf("expected turn timeout 10, got %d", cfg.Game.TurnTimeoutSec)
 	}
 	if cfg.Game.MaxPlayers != 4 {
 		t.Errorf("expected max players 4, got %d", cfg.Game.MaxPlayers)

game/session_test.go

@@ -63,8 +63,8 @@ func TestSessionTurnTimeout(t *testing.T) {
 	select {
 	case <-done:
 		// Turn completed via timeout
-	case <-time.After(7 * time.Second):
+	case <-time.After(12 * time.Second):
-		t.Error("Turn did not timeout within 7 seconds")
+		t.Error("Turn did not timeout within 12 seconds")
 	}
 }
 

ui/help_view.go

@@ -29,11 +29,16 @@ func renderHelp(width, height int) string {
 	title := styleHeader.Render("── Controls ──")
 
 	sections := []struct{ header, body string }{
+		{"Lobby", `  [C]  Create room    [J]  Join by code
+  [Enter] Join selected room
+  [D]  Daily Challenge  [H]  Hard Mode toggle
+  [Q]  Back to title`},
 		{"Exploration", `  [Up/Down]  Select room
   [Enter]    Move to room
+  [[]  / []]  Allocate skill point (branch 1/2)
   [/]        Chat
   [Q]        Quit`},
-		{"Combat", `  [1]  Attack      [2]  Skill
+		{"Combat (10s per turn)", `  [1]  Attack      [2]  Skill
   [3]  Use Item    [4]  Flee
   [5]  Defend      [Tab] Switch Target
   [/]  Chat`},
@@ -43,10 +48,16 @@ func renderHelp(width, height int) string {
   Mage      70HP 20ATK 3DEF  Fireball (AoE 0.8x)
   Healer    90HP  8ATK 5DEF  Heal (restore 30HP)
   Rogue     85HP 15ATK 4DEF  Scout (reveal rooms)`},
+		{"Multiplayer", `  • Up to 4 players per room
+  • Co-op bonus: +10% dmg when 2+ target same enemy
+  • Class combos trigger bonus effects
+  • All players ready → game starts`},
 		{"Tips", `  • Skills have 3 uses per combat
-  • Co-op bonus: 10% extra when 2+ attack same target
   • Items are limited to 10 per player
-  • Dead players revive next floor at 30% HP`},
+  • Dead players revive next floor at 30% HP
+  • Bosses appear at floors 5, 10, 15, 20
+  • Skill points: 1 per floor clear (max 3)
+  • Weekly mutations rotate gameplay modifiers`},
 	}
 
 	var content string