feat(radar): add TLD, ranking timeseries, speed histogram tools and update HTTP/DNS/AI to use direct API

- Add list_tlds and get_tld_details tools for TLD information
- Add get_domains_ranking_timeseries to track domain rankings over time
- Add get_speed_histogram for speed test distribution data
- Update get_http_data to use fetchRadarApi with new unified dimensions (adm1, bot_class, browser, browser_family, device_type, http_protocol, http_version, ip_version, os, post_quantum, tls_version)
- Update get_dns_queries_data to use fetchRadarApi with new dimensions (dnssec_e2e, tld, tld_dns_magnitude)
- Update get_ai_data to use fetchRadarApi with new dimensions (crawl_purpose, industry, vertical)
- Add radar.cloudflare.com link to README
- Update README with new tools and prompt examples

Author: andre-j3sus

apps/radar/PR_DESCRIPTION.md

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+## Summary
+
+This PR adds new tools, updates existing tools to use the direct API instead of SDK (for better dimension support), and adds missing dimensions to HTTP, DNS, and AI tools.
+
+### New Tools (4)
+
+- **`list_tlds`** - List top-level domains (TLDs) including generic, country-code, and sponsored TLDs
+- **`get_tld_details`** - Get detailed information about a specific TLD
+- **`get_domains_ranking_timeseries`** - Track domain rankings over time
+- **`get_speed_histogram`** - Get speed test histogram data for bandwidth, latency, or jitter distribution
+
+### Updated Tools (3) - Switched from SDK to Direct API
+
+These tools now use `fetchRadarApi` instead of the SDK to support all available dimensions:
+
+- **`get_http_data`** - Now supports new unified endpoint dimensions:
+
+  - `summary/adm1`, `summary/bot_class`, `summary/browser`, `summary/browser_family`, `summary/device_type`, `summary/http_protocol`, `summary/http_version`, `summary/ip_version`, `summary/os`, `summary/post_quantum`, `summary/tls_version`
+  - `timeseriesGroups/adm1`, `timeseriesGroups/bot_class`, `timeseriesGroups/browser`, `timeseriesGroups/browser_family`, `timeseriesGroups/device_type`, `timeseriesGroups/http_protocol`, `timeseriesGroups/http_version`, `timeseriesGroups/ip_version`, `timeseriesGroups/os`, `timeseriesGroups/post_quantum`, `timeseriesGroups/tls_version`
+
+- **`get_dns_queries_data`** - Now supports additional dimensions:
+
+  - `summary/dnssec_e2e`, `summary/tld`, `summary/tld_dns_magnitude`
+  - `timeseriesGroups/dnssec`, `timeseriesGroups/dnssec_e2e`, `timeseriesGroups/tld`
+
+- **`get_ai_data`** - Now supports additional dimensions:
+  - `bots/timeseries`
+  - `bots/summary/crawl_purpose`, `bots/summary/industry`, `bots/summary/vertical`
+  - `bots/timeseries_groups/crawl_purpose`, `bots/timeseries_groups/industry`, `bots/timeseries_groups/vertical`
+
+### Other Changes
+
+- Added link to [radar.cloudflare.com](https://radar.cloudflare.com) in README
+- Updated README with new tools and prompt examples
+- Removed deprecated `top/browser` and `top/browserFamily` dimensions (now available as `summary/browser` and `summary/browser_family`)
+
+### New Type Parameters
+
+- `TldTypeParam`, `TldManagerParam`, `TldParam`, `TldFilterParam` - For TLD filtering
+- `DomainsArrayParam`, `DomainCategoryArrayParam` - For ranking timeseries
+- `SpeedHistogramMetricParam`, `BucketSizeParam` - For speed histogram