feat(help): append support footer with repo star link

src/modules/util/help-command.js

@@ -17,6 +17,9 @@ import { getCurrentRegistry } from "../registry.js";
  * @typedef {import("../validate-command.js").ModuleCommand} ModuleCommand
  */
 
+const REPO_URL = "https://github.com/tiennm99/miti99bot";
+const SUPPORT_FOOTER = `Enjoying the bot? Support me by starring the repo: <a href="${REPO_URL}">${REPO_URL}</a>`;
+
 /**
  * Pure render step — exported separately so tests can assert on the string
  * without instantiating a bot context.
@@ -51,7 +54,8 @@ export function renderHelp(reg) {
     sections.push(`<b>${escapeHtml(mod.name)}</b>\n${lines.join("\n")}`);
   }
 
-  return sections.length > 0 ? sections.join("\n\n") : "no commands registered";
+  const body = sections.length > 0 ? sections.join("\n\n") : "no commands registered";
+  return `${body}\n\n${SUPPORT_FOOTER}`;
 }
 
 /** @type {ModuleCommand} */
@@ -62,7 +66,7 @@ export const helpCommand = {
   handler: async (ctx) => {
     const reg = getCurrentRegistry();
     const text = renderHelp(reg);
-    await ctx.reply(text, { parse_mode: "HTML" });
+    await ctx.reply(text, { parse_mode: "HTML", link_preview_options: { is_disabled: true } });
   },
 };
 

tests/modules/util/help-command.test.js

@@ -99,6 +99,13 @@ describe("renderHelp", () => {
 
   it("returns a placeholder when no commands are visible", () => {
     const reg = makeRegistry([{ name: "a", commands: [cmd("hidden", "private", "H")] }]);
-    expect(renderHelp(reg)).toBe("no commands registered");
+    expect(renderHelp(reg)).toContain("no commands registered");
+  });
+
+  it("appends a support footer with the repo link", () => {
+    const reg = makeRegistry([{ name: "a", commands: [cmd("one", "public", "A-one")] }]);
+    const out = renderHelp(reg);
+    expect(out).toContain("star");
+    expect(out).toContain("https://github.com/tiennm99/miti99bot");
   });
 });