fix(discord): handle missing guild/channel data in link resolution

Add null checks for guild.id and guild.name when resolving Discord
entities. This prevents TypeError when processing invite links for
servers/channels the bot doesn't have cached.

Fixes #6606

src/discord/directory-live.ts

@@ -27,7 +27,8 @@ export async function listDiscordDirectoryGroupsLive(
     return [];
   }
   const query = normalizeQuery(params.query);
-  const guilds = await fetchDiscord<DiscordGuild[]>("/users/@me/guilds", token);
+  const rawGuilds = await fetchDiscord<DiscordGuild[]>("/users/@me/guilds", token);
+  const guilds = rawGuilds.filter((g) => g.id && g.name);
   const rows: ChannelDirectoryEntry[] = [];
 
   for (const guild of guilds) {
@@ -69,7 +70,8 @@ export async function listDiscordDirectoryPeersLive(
     return [];
   }
 
-  const guilds = await fetchDiscord<DiscordGuild[]>("/users/@me/guilds", token);
+  const rawGuilds = await fetchDiscord<DiscordGuild[]>("/users/@me/guilds", token);
+  const guilds = rawGuilds.filter((g) => g.id && g.name);
   const rows: ChannelDirectoryEntry[] = [];
   const limit = typeof params.limit === "number" && params.limit > 0 ? params.limit : 25;
 

src/discord/resolve-channels.ts

@@ -74,16 +74,21 @@ function parseDiscordChannelInput(raw: string): {
 }
 
 async function listGuilds(token: string, fetcher: typeof fetch): Promise<DiscordGuildSummary[]> {
-  const raw = await fetchDiscord<Array<{ id: string; name: string }>>(
+  const raw = await fetchDiscord<Array<{ id?: string; name?: string }>>(
     "/users/@me/guilds",
     token,
     fetcher,
   );
-  return raw.map((guild) => ({
+  return raw
-    id: guild.id,
+    .filter(
-    name: guild.name,
+      (guild): guild is { id: string; name: string } =>
-    slug: normalizeDiscordSlug(guild.name),
+        typeof guild.id === "string" && typeof guild.name === "string",
-  }));
+    )
+    .map((guild) => ({
+      id: guild.id,
+      name: guild.name,
+      slug: normalizeDiscordSlug(guild.name),
+    }));
 }
 
 async function listGuildChannels(

src/discord/resolve-users.ts

@@ -62,16 +62,21 @@ function parseDiscordUserInput(raw: string): {
 }
 
 async function listGuilds(token: string, fetcher: typeof fetch): Promise<DiscordGuildSummary[]> {
-  const raw = await fetchDiscord<Array<{ id: string; name: string }>>(
+  const raw = await fetchDiscord<Array<{ id?: string; name?: string }>>(
     "/users/@me/guilds",
     token,
     fetcher,
   );
-  return raw.map((guild) => ({
+  return raw
-    id: guild.id,
+    .filter(
-    name: guild.name,
+      (guild): guild is { id: string; name: string } =>
-    slug: normalizeDiscordSlug(guild.name),
+        typeof guild.id === "string" && typeof guild.name === "string",
-  }));
+    )
+    .map((guild) => ({
+      id: guild.id,
+      name: guild.name,
+      slug: normalizeDiscordSlug(guild.name),
+    }));
 }
 
 function scoreDiscordMember(member: DiscordMember, query: string): number {