refactor: Remove SRA integration (no public API available)

The SRA (Solicitors Regulation Authority) does not provide a public REST API.
Their register is only accessible via their website. Removed all SRA-related
code and added ApiTester tool for testing remaining integrations.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tools/ApiTester/Program.cs

@@ -0,0 +1,123 @@
+using System.Net.Http.Headers;
+using System.Text.Json;
+
+Console.WriteLine("=== RealCV API Integration Tester ===\n");
+
+// Test 1: FCA Register API
+Console.WriteLine("1. Testing FCA Register API...");
+try
+{
+    var fcaClient = new HttpClient();
+    fcaClient.BaseAddress = new Uri("https://register.fca.org.uk/services/V0.1/");
+    fcaClient.DefaultRequestHeaders.Add("X-Auth-Email", "peter.foster@ukdataservices.co.uk");
+    fcaClient.DefaultRequestHeaders.Add("X-Auth-Key", "9ae1aee51e5c717a1135775501c89075");
+
+    var fcaResponse = await fcaClient.GetAsync("Individuals?q=John%20Smith&page=1");
+    Console.WriteLine($"   Status: {fcaResponse.StatusCode}");
+
+    if (fcaResponse.IsSuccessStatusCode)
+    {
+        var content = await fcaResponse.Content.ReadAsStringAsync();
+        Console.WriteLine($"   ✓ FCA API working");
+        using var doc = JsonDocument.Parse(content);
+        if (doc.RootElement.TryGetProperty("Data", out var data) && data.ValueKind == JsonValueKind.Array)
+        {
+            Console.WriteLine($"   Found {data.GetArrayLength()} individuals matching 'John Smith'");
+        }
+        else
+        {
+            Console.WriteLine($"   Response: {content.Substring(0, Math.Min(200, content.Length))}");
+        }
+    }
+    else
+    {
+        Console.WriteLine($"   ✗ Error: {fcaResponse.StatusCode}");
+    }
+}
+catch (Exception ex)
+{
+    Console.WriteLine($"   ✗ Error: {ex.Message}");
+}
+
+Console.WriteLine();
+
+// Test 2: ORCID API
+Console.WriteLine("2. Testing ORCID API...");
+try
+{
+    var orcidClient = new HttpClient();
+    orcidClient.BaseAddress = new Uri("https://pub.orcid.org/v3.0/");
+    orcidClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+
+    // Get a known ORCID record directly
+    var orcidResponse = await orcidClient.GetAsync("0000-0001-5109-3700/record");
+    Console.WriteLine($"   Status: {orcidResponse.StatusCode}");
+
+    if (orcidResponse.IsSuccessStatusCode)
+    {
+        var content = await orcidResponse.Content.ReadAsStringAsync();
+        Console.WriteLine($"   ✓ ORCID API working");
+        using var doc = JsonDocument.Parse(content);
+        if (doc.RootElement.TryGetProperty("person", out var person) &&
+            person.TryGetProperty("name", out var name))
+        {
+            var givenName = "";
+            var familyName = "";
+            if (name.TryGetProperty("given-names", out var gn) && gn.TryGetProperty("value", out var gnv))
+                givenName = gnv.GetString() ?? "";
+            if (name.TryGetProperty("family-name", out var fn) && fn.TryGetProperty("value", out var fnv))
+                familyName = fnv.GetString() ?? "";
+            Console.WriteLine($"   Retrieved record for: {givenName} {familyName}");
+        }
+    }
+    else
+    {
+        Console.WriteLine($"   ✗ Error: {orcidResponse.StatusCode}");
+    }
+}
+catch (Exception ex)
+{
+    Console.WriteLine($"   ✗ Error: {ex.Message}");
+}
+
+Console.WriteLine();
+
+// Test 3: GitHub API
+Console.WriteLine("3. Testing GitHub API...");
+try
+{
+    var githubClient = new HttpClient();
+    githubClient.BaseAddress = new Uri("https://api.github.com/");
+    githubClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/vnd.github+json"));
+    githubClient.DefaultRequestHeaders.Add("X-GitHub-Api-Version", "2022-11-28");
+    githubClient.DefaultRequestHeaders.UserAgent.ParseAdd("RealCV/1.0");
+
+    var githubResponse = await githubClient.GetAsync("users/torvalds");
+    Console.WriteLine($"   Status: {githubResponse.StatusCode}");
+
+    if (githubResponse.IsSuccessStatusCode)
+    {
+        var content = await githubResponse.Content.ReadAsStringAsync();
+        Console.WriteLine($"   ✓ GitHub API working");
+        using var doc = JsonDocument.Parse(content);
+        var name = doc.RootElement.GetProperty("name").GetString();
+        var repos = doc.RootElement.GetProperty("public_repos").GetInt32();
+        var followers = doc.RootElement.GetProperty("followers").GetInt32();
+        Console.WriteLine($"   User: {name}, Repos: {repos}, Followers: {followers}");
+    }
+    else
+    {
+        Console.WriteLine($"   ✗ Error: {githubResponse.StatusCode}");
+    }
+
+    if (githubResponse.Headers.TryGetValues("X-RateLimit-Remaining", out var remaining))
+    {
+        Console.WriteLine($"   Rate limit remaining: {remaining.First()}");
+    }
+}
+catch (Exception ex)
+{
+    Console.WriteLine($"   ✗ Error: {ex.Message}");
+}
+
+Console.WriteLine("\n=== Tests complete ===");