Changeset 0.33.0 (#207)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/main.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"bytes"
 	"context"
+	_ "embed"
 	"encoding/json"
 	"fmt"
 	"log"
@@ -12,6 +14,7 @@ import (
 	"time"
 
 	"github.com/gin-gonic/gin"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 
 	"chat-switchboard/auth"
 	"chat-switchboard/compaction"
@@ -24,6 +27,8 @@ import (
 	"chat-switchboard/sandbox"
 	"chat-switchboard/handlers"
 	"chat-switchboard/health"
+	"chat-switchboard/logging"
+	"chat-switchboard/metrics"
 	"chat-switchboard/knowledge"
 	"chat-switchboard/memory"
 	"chat-switchboard/middleware"
@@ -43,6 +48,14 @@ import (
 	"chat-switchboard/workspace"
 )
 
+// v0.33.0: Embedded OpenAPI spec and Swagger UI for /api/docs.
+//
+//go:embed static/openapi.yaml
+var openapiSpec []byte
+
+//go:embed static/swagger.html
+var swaggerHTML []byte
+
 func main() {
 	// ── Subcommand dispatch ──────────────────
 	// Usage: switchboard vault rekey
@@ -58,6 +71,10 @@ func main() {
 	// ── Server startup ──────────────────────
 	cfg := config.Load()
 
+	// v0.33.0: Structured logging — must be first so all subsequent
+	// log output goes through slog.
+	logging.Init(cfg.LogFormat, cfg.LogLevel)
+
 	// Register LLM providers
 	providers.Init()
 
@@ -129,6 +146,9 @@ func main() {
 		healthAccum = health.NewAccumulator(healthStore)
 		defer healthAccum.Stop()
 
+		// v0.33.0: Start Prometheus DB pool collector
+		metrics.StartDBCollector(database.DB, 15*time.Second)
+
 		// Auto-disable: deactivate providers that are "down" for N consecutive
 		// hourly windows. Configured via PROVIDER_AUTO_DISABLE_THRESHOLD env var.
 		// Default: 3 (3 consecutive "down" hours triggers deactivation). Set to 0 to disable.
@@ -390,7 +410,11 @@ func main() {
 
 	log.Printf("  🔗 Pre-completion filter chain: %d filters", filterChain.Len())
 
-	r := gin.Default()
+	r := gin.New()
+	r.Use(middleware.RequestID())
+	r.Use(middleware.Prometheus())
+	r.Use(middleware.Logger())
+	r.Use(middleware.Recovery())
 	userCache := middleware.NewUserStatusCache()
 	r.Use(middleware.CORS(cfg))
 
@@ -478,6 +502,19 @@ func main() {
 		c.JSON(200, gin.H{"status": "ok"})
 	})
 
+	// v0.33.0: Prometheus metrics endpoint (no auth — Prometheus scrapes directly)
+	base.GET("/metrics", gin.WrapH(promhttp.Handler()))
+
+	// v0.33.0: OpenAPI spec + Swagger UI (no auth — documentation)
+	base.GET("/api/docs", func(c *gin.Context) {
+		c.Data(http.StatusOK, "text/html; charset=utf-8", swaggerHTML)
+	})
+	base.GET("/api/docs/openapi.yaml", func(c *gin.Context) {
+		// Replace ${VERSION} placeholder with actual version from VERSION file
+		patched := bytes.Replace(openapiSpec, []byte("${VERSION}"), []byte(Version), 1)
+		c.Data(http.StatusOK, "application/yaml", patched)
+	})
+
 	// WebSocket endpoint
 	base.GET("/ws", middleware.WsAuth(cfg, stores.Users, userCache, ticketAdapter), hub.HandleWebSocket)
 
@@ -1207,6 +1244,10 @@ func main() {
 			admin.PUT("/extensions/:id/secrets", extSecH.SetSecrets)
 			admin.DELETE("/extensions/:id/secrets", extSecH.DeleteSecrets)
 
+			// Admin Dashboard (v0.33.0)
+			dashAdm := handlers.NewDashboardAdminHandler(stores, healthStore, hub)
+			admin.GET("/dashboard", dashAdm.GetDashboard)
+
 			// Provider Health (admin — v0.22.0)
 			healthAdm := handlers.NewHealthAdminHandler(healthStore, stores)
 			admin.GET("/providers/health", healthAdm.GetAllProviderHealth)