feat(15-02): add Confluence and GoogleDocs ReconSource implementations

- ConfluenceSource searches exposed instances via /rest/api/content/search CQL
- GoogleDocsSource uses dorking + /export?format=txt for plain-text scanning
- HTML tag stripping for Confluence storage format
- Both credentialless, tests with httptest mocks confirm findings

pkg/recon/sources/confluence_test.go

@@ -0,0 +1,77 @@
+package sources
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/salvacybersec/keyhunter/pkg/providers"
+	"github.com/salvacybersec/keyhunter/pkg/recon"
+)
+
+func TestConfluence_Name(t *testing.T) {
+	s := &ConfluenceSource{}
+	if s.Name() != "confluence" {
+		t.Fatalf("expected confluence, got %s", s.Name())
+	}
+}
+
+func TestConfluence_Enabled(t *testing.T) {
+	s := &ConfluenceSource{}
+	if !s.Enabled(recon.Config{}) {
+		t.Fatal("ConfluenceSource should always be enabled (credentialless)")
+	}
+}
+
+func TestConfluence_Sweep(t *testing.T) {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/rest/api/content/search", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"results":[{
+			"id":"12345",
+			"title":"API Configuration",
+			"body":{"storage":{"value":"<p>Production credentials: <code>secret_key = sk-proj-ABCDEF1234567890abcdef</code></p>"}},
+			"_links":{"webui":"/display/TEAM/API+Configuration"}
+		}]}`))
+	})
+
+	srv := httptest.NewServer(mux)
+	defer srv.Close()
+
+	reg := providers.NewRegistryFromProviders([]providers.Provider{
+		{Name: "openai", Keywords: []string{"sk-proj-"}},
+	})
+
+	s := &ConfluenceSource{
+		BaseURL:  srv.URL,
+		Registry: reg,
+		Client:   NewClient(),
+	}
+
+	out := make(chan recon.Finding, 10)
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	err := s.Sweep(ctx, "", out)
+	close(out)
+	if err != nil {
+		t.Fatalf("Sweep error: %v", err)
+	}
+
+	var findings []recon.Finding
+	for f := range out {
+		findings = append(findings, f)
+	}
+	if len(findings) == 0 {
+		t.Fatal("expected at least one finding from Confluence page")
+	}
+	if findings[0].SourceType != "recon:confluence" {
+		t.Fatalf("expected recon:confluence, got %s", findings[0].SourceType)
+	}
+	expected := srv.URL + "/display/TEAM/API+Configuration"
+	if findings[0].Source != expected {
+		t.Fatalf("expected %s, got %s", expected, findings[0].Source)
+	}
+}