feat(help): create a help panel

src/cog/help.py

@@ -0,0 +1,76 @@
+from discord.ext import commands
+import discord
+
+from src.config import settings
+
+# constants
+GITHUB_URL = "https://github.com/ICEDTEACTF/CTFeed"
+
+# view
+class HelpMenu(discord.ui.View):
+    def __init__(self, bot:commands.Bot):
+        super().__init__(timeout=None)
+
+        self.bot = bot
+        self._build_view()
+
+
+    def _build_view(self):
+        # link buttons
+        self.add_item(discord.ui.Button(
+            style=discord.ButtonStyle.link,
+            label="GitHub",
+            url=GITHUB_URL
+        ))
+        self.add_item(discord.ui.Button(
+            style=discord.ButtonStyle.link,
+            label="Dashboard",
+            url=settings.HTTP_FRONTEND_URL
+        ))
+
+        return
+
+
+    async def build_embed_and_view(self) -> discord.Embed:
+        # build embed
+        bot_name = self.bot.user.name if self.bot.user is not None else "ICEDTEA CTF bot"
+        description = (
+            "CTFeed is a Discord bot that tracks CTFTime events, "
+            "manages event channels, and provides a simple dashboard."
+        )
+        commands_info = [
+            "`/help` - Show this help message",
+            "`/ctfmenu` - Browse and manage CTFTime events",
+            "`/user` - View and update your user profile",
+            "`/config` - Configure guild settings (admin only)"
+        ]
+
+        embed = discord.Embed(
+            title=f"{bot_name} Help",
+            description=description,
+            color=discord.Color.green()
+        )
+        embed.add_field(
+            name="Commands",
+            value="\n".join(commands_info),
+            inline=False
+        )
+
+        return embed
+
+
+# cog
+class Help(commands.Cog):
+    def __init__(self, bot:commands.Bot):
+        self.bot = bot
+
+
+    @discord.slash_command(name="help", description="Help Panel")
+    async def help_menu(self, ctx:discord.ApplicationContext):
+        view = HelpMenu(self.bot)
+        embed = await view.build_embed_and_view()
+        await ctx.response.send_message(embed=embed, view=view, ephemeral=True)
+
+
+def setup(bot:commands.Bot):
+    bot.add_cog(Help(bot))