chore: improve DX scripts, fix test suite, and harden tooling

Scripts:
- remote.sh: remove unused open_browser() function
- deploy-remote.sh: add DB backup before deploy, --skip-backup flag, step numbering
- db-backup.sh: fix macOS compat (xargs -r is GNU-only), use portable approach
- db-restore.sh: add safety backup before restore, SQL file validation, file size display
- logs.sh: default to no-follow with --tail=100, order-independent arg parsing
- docker-cleanup.sh: add Docker health check, colored output
- test-sequential.sh: exclude *.integration.test.ts by default, add --integration flag
- simulate-ci.sh: pass --integration flag (has real DB)

Tests:
- db.test.ts: fix mock path from ./DrizzleClient to @shared/db/DrizzleClient
- server.settings.test.ts: rewrite mocks for gameSettingsService (old config/saveConfig removed)
- server.test.ts: add missing config.lootdrop and BotClient mocks, complete DrizzleClient chain
- indexes.test.ts: rename to indexes.integration.test.ts (requires live DB)

Config:
- package.json: test script uses sequential runner, add test:ci and db:restore aliases
- deploy.yml: use --integration flag in CI (has Postgres service)

web/src/server.test.ts

@@ -1,6 +1,5 @@
 import { describe, test, expect, afterAll, mock } from "bun:test";
 import type { WebServerInstance } from "./server";
-import { createWebServer } from "./server";
 
 interface MockBotStats {
     bot: { name: string; avatarUrl: string | null };
@@ -13,21 +12,21 @@ interface MockBotStats {
 }
 
 // 1. Mock DrizzleClient (dependency of dashboardService)
+// Must provide full chainable builder for select().from().leftJoin().groupBy().orderBy().limit()
 mock.module("@shared/db/DrizzleClient", () => {
-    const mockBuilder = {
-        where: mock(() => Promise.resolve([{ count: "5", balance: 1000n, level: 5, dailyStreak: 2 }])),
-        then: (onfulfilled: any) => onfulfilled([{ count: "5", balance: 1000n, level: 5, dailyStreak: 2 }]),
-        orderBy: mock(() => mockBuilder), // Chainable
-        limit: mock(() => Promise.resolve([])), // Terminal
-    };
-
-    const mockFrom = {
-        from: mock(() => mockBuilder),
-    };
+    const mockBuilder: Record<string, any> = {};
+    // Every chainable method returns mock builder; terminal calls return resolved promise
+    mockBuilder.where = mock(() => Promise.resolve([{ count: "5", balance: 1000n, level: 5, dailyStreak: 2 }]));
+    mockBuilder.then = (onfulfilled: any) => onfulfilled([{ count: "5", balance: 1000n, level: 5, dailyStreak: 2 }]);
+    mockBuilder.orderBy = mock(() => mockBuilder);
+    mockBuilder.limit = mock(() => Promise.resolve([]));
+    mockBuilder.leftJoin = mock(() => mockBuilder);
+    mockBuilder.groupBy = mock(() => mockBuilder);
+    mockBuilder.from = mock(() => mockBuilder);
 
     return {
         DrizzleClient: {
-            select: mock(() => mockFrom),
+            select: mock(() => mockBuilder),
             query: {
                 transactions: { findMany: mock(() => Promise.resolve([])) },
                 moderationCases: { findMany: mock(() => Promise.resolve([])) },
@@ -54,7 +53,31 @@ mock.module("../../bot/lib/clientStats", () => ({
     })),
 }));
 
-// 3. System Events (No mock needed, use real events)
+// 3. Mock config (used by lootdrop.service.getLootdropState)
+mock.module("@shared/lib/config", () => ({
+    config: {
+        lootdrop: {
+            activityWindowMs: 120000,
+            minMessages: 1,
+            spawnChance: 1,
+            cooldownMs: 3000,
+            reward: { min: 40, max: 150, currency: "Astral Units" }
+        }
+    }
+}));
+
+// 4. Mock BotClient (used by stats helper for maintenanceMode)
+mock.module("../../bot/lib/BotClient", () => ({
+    AuroraClient: {
+        maintenanceMode: false,
+        guilds: { cache: { get: () => null } },
+        commands: [],
+        knownCommands: new Map(),
+    }
+}));
+
+// Import after all mocks are set up
+import { createWebServer } from "./server";
 
 describe("WebServer Security & Limits", () => {
     const port = 3001;