Add file-type and host filters with a 4chan default

poc/src/control-bridge.ts

@@ -883,6 +883,8 @@ function buildServer(): McpServer {
                 authorIds: z.array(z.string()).optional().describe("Restrict to these posters"),
                 origin: z.enum(["dm", "guild"]).optional().describe("Server channels or DMs"),
                 cachedOnly: z.boolean().optional().describe("Only items with a cached preview"),
+                exts: z.array(z.string()).optional().describe("Only these file extensions (mp4, webm, png, ...)"),
+                excludeHosts: z.array(z.string()).optional().describe("Hide URLs from these hosts"),
                 aspect: z
                     .enum(["vertical", "square", "wide43", "wide169", "ultrawide", "other"])
                     .optional()
@@ -905,6 +907,8 @@ function buildServer(): McpServer {
             authorIds,
             origin,
             cachedOnly,
+            exts,
+            excludeHosts,
             aspect,
             resolution,
             after,
@@ -921,6 +925,8 @@ function buildServer(): McpServer {
                     authorIds,
                     origin,
                     cachedOnly,
+                    exts,
+                    excludeHosts,
                     aspect,
                     resolution,
                     after,