feat: Add deployment guide and update README for Coolify setup; include dotenv for environment variable management

tests/commands/ping.test.ts

@@ -1,10 +1,13 @@
+import { ChatInputCommandInteraction } from "discord.js";
 import { pingCommand } from "../../src/commands/ping";
 
 describe("pingCommand", () => {
   it("replies with Pong", async () => {
     const reply = jest.fn().mockResolvedValue(undefined);
 
-    await pingCommand.execute({ reply } as any);
+    await pingCommand.execute({
+      reply,
+    } as unknown as ChatInputCommandInteraction);
 
     expect(reply).toHaveBeenCalledWith("Pong!");
   });

tests/commands/sign-up.test.ts

@@ -20,15 +20,16 @@ describe("signUpCommand", () => {
     (getTourSchedule as jest.Mock).mockReturnValue(queue);
   });
 
-  function createInteraction(action: string): any {
+  function createInteraction(action: string) {
     return {
       inGuild: () => true,
       guildId: "guild-1",
       user: { id: "user-1" },
       guild: { id: "guild-1" },
       memberPermissions: {
-        has: jest.fn((permission: bigint) =>
-          permission === PermissionFlagsBits.ManageChannels,
+        has: jest.fn(
+          (permission: bigint) =>
+            permission === PermissionFlagsBits.ManageChannels,
         ),
       },
       options: {

tests/integration/mileage-engine-flow.test.ts

@@ -1,3 +1,5 @@
+import { GuildMember } from "discord.js";
+
 const mockClient = {
   query: jest.fn(),
   release: jest.fn(),
@@ -53,7 +55,7 @@ describe("MileageEngine flow", () => {
           }),
         },
       },
-    } as any;
+    } as unknown as GuildMember;
 
     const engine = new MileageEngine({
       databaseUrl: "postgres://test",

tests/integration/tour-schedule-flow.test.ts

@@ -1,4 +1,4 @@
-import { ChannelType } from "discord.js";
+import { ChannelType, Guild } from "discord.js";
 import { TourScheduleEngine } from "../../src/tour-schedule";
 
 describe("TourScheduleEngine flow", () => {
@@ -15,26 +15,24 @@ describe("TourScheduleEngine flow", () => {
         }),
       },
       channels: {
-        fetch: jest
-          .fn()
-          .mockImplementation(async (channelId: string) => {
-            if (channelId === "stage-1") {
-              return {
-                type: ChannelType.GuildStageVoice,
-              };
-            }
+        fetch: jest.fn().mockImplementation(async (channelId: string) => {
+          if (channelId === "stage-1") {
+            return {
+              type: ChannelType.GuildStageVoice,
+            };
+          }
 
-            if (channelId === "announce-1") {
-              return {
-                isSendable: () => true,
-                send,
-              };
-            }
+          if (channelId === "announce-1") {
+            return {
+              isSendable: () => true,
+              send,
+            };
+          }
 
-            return null;
-          }),
+          return null;
+        }),
       },
-    } as any;
+    } as unknown as Guild;
 
     const engine = new TourScheduleEngine({
       stageChannelId: "stage-1",