Rewrite Strix from scratch as single binary

Complete architecture rewrite following go2rtc patterns:
- pkg/ for pure logic (camdb, tester, probe, generate)
- internal/ for application glue with Init() modules
- Single HTTP server on :4567 with all endpoints
- zerolog with password masking and memory ring buffer
- Environment-based config only (no YAML files)

API endpoints: /api/search, /api/streams, /api/test,
/api/probe, /api/generate, /api/health, /api/log

Dependencies: go2rtc v1.9.14, go-sqlite3, miekg/dns, zerolog

internal/generate/generate.go

@@ -0,0 +1,40 @@
+package generate
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/eduard256/strix/internal/api"
+	"github.com/eduard256/strix/internal/app"
+	gen "github.com/eduard256/strix/pkg/generate"
+	"github.com/rs/zerolog"
+)
+
+var log zerolog.Logger
+
+func Init() {
+	log = app.GetLogger("generate")
+
+	api.HandleFunc("api/generate", apiGenerate)
+}
+
+func apiGenerate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req gen.Request
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		http.Error(w, "invalid json: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	resp, err := gen.Generate(&req)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+		return
+	}
+
+	api.ResponseJSON(w, resp)
+}