feat(cdp): implement Network.setBlockedURLs via urlPatterns

Reimplement request blocking on the non-deprecated urlPatterns shape:
each pattern carries an explicit block/allow flag (first match wins),
UrlBlocklist owns the compiled patterns plus their block flags, and the
legacy setBlockedUrls path stays for back-compat. Tests updated.

src/network/HttpClient.zig

@@ -36,6 +36,7 @@ const Network = @import("Network.zig");
 const Cache = @import("cache/Cache.zig");
 const RobotsGate = @import("RobotsGate.zig");
 const UrlBlocklist = @import("UrlBlocklist.zig");
+pub const BlockPattern = UrlBlocklist.Pattern;
 
 const log = lp.log;
 const Allocator = std.mem.Allocator;
@@ -366,6 +367,16 @@ pub fn setBlockedUrls(self: *Client, patterns: []const []const u8) !void {
     self.url_blocklist = replacement;
 }
 
+pub fn setBlockedUrlPatterns(self: *Client, patterns: []const BlockPattern) !void {
+    const replacement: ?UrlBlocklist = if (patterns.len == 0)
+        null
+    else
+        try UrlBlocklist.initPatterns(self.allocator, patterns);
+
+    self.clearUrlBlocklist();
+    self.url_blocklist = replacement;
+}
+
 fn clearUrlBlocklist(self: *Client) void {
     if (self.url_blocklist) |*blocklist| {
         blocklist.deinit();