Add swaggo annotations to all handlers and regenerate full Swagger docs

- Added @Summary/@Router/@Param/@Success/@Security annotations to all API handlers
- Regenerated docs/swagger.json, docs/swagger.yaml, docs/docs.go with full endpoint definitions
- Fixed generated docs.go to remove unsupported LeftDelim/RightDelim fields

internal/invite/handlers.go

@@ -61,6 +61,18 @@ func generateCode(length int) (string, error) {
 	return string(result), nil
 }
 
+// @Summary Create an invite
+// @Description Create an invite code for a server
+// @Tags invites
+// @Accept json
+// @Produce json
+// @Security SessionAuth
+// @Param serverID path string true "Server ID"
+// @Param body body createInviteRequest false "Invite options"
+// @Success 201 {object} inviteResponse
+// @Failure 401 {object} map[string]string
+// @Failure 403 {object} map[string]string
+// @Router /servers/{serverID}/invites [post]
 func (h *Handler) Create(w http.ResponseWriter, r *http.Request) {
 	serverID := chi.URLParam(r, "serverID")
 	userID, ok := middleware.UserIDFromContext(r.Context())
@@ -163,6 +175,14 @@ func (h *Handler) Create(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(invite)
 }
 
+// @Summary Get invite info
+// @Description Get information about an invite by code
+// @Tags invites
+// @Produce json
+// @Param code path string true "Invite code"
+// @Success 200 {object} inviteResponse
+// @Failure 404 {object} map[string]string
+// @Router /invites/{code} [get]
 func (h *Handler) Get(w http.ResponseWriter, r *http.Request) {
 	code := chi.URLParam(r, "code")
 
@@ -197,6 +217,18 @@ func (h *Handler) Get(w http.ResponseWriter, r *http.Request) {
 	json.NewEncoder(w).Encode(invite)
 }
 
+// @Summary Join server via invite
+// @Description Join a server using an invite code
+// @Tags invites
+// @Produce json
+// @Security SessionAuth
+// @Param code path string true "Invite code"
+// @Success 200 {object} map[string]string
+// @Failure 400 {object} map[string]string
+// @Failure 401 {object} map[string]string
+// @Failure 404 {object} map[string]string
+// @Failure 409 {object} map[string]string
+// @Router /invites/{code}/join [post]
 func (h *Handler) Join(w http.ResponseWriter, r *http.Request) {
 	code := chi.URLParam(r, "code")
 	userID, ok := middleware.UserIDFromContext(r.Context())