feat(tui): expose HTTP method and accepted status codes in monitor form

DB fields existed but were never surfaced in the TUI. Adds an HTTP
Settings form group with method select (7 methods) and accepted
codes input, visible only for HTTP monitors.

internal/tui/tab_sites.go

@@ -21,20 +21,22 @@ var siteGroupStyle = lipgloss.NewStyle().
 	Foreground(lipgloss.Color("#7D56F4"))
 
 type siteFormData struct {
-	Name        string
-	SiteType    string
-	URL         string
-	Interval    string
-	AlertID     string
-	CheckSSL    bool
-	Threshold   string
-	Retries     string
-	Hostname    string
-	Port        string
-	Timeout     string
-	Description string
-	IgnoreTLS   bool
-	GroupID     string
+	Name          string
+	SiteType      string
+	URL           string
+	Method        string
+	AcceptedCodes string
+	Interval      string
+	AlertID       string
+	CheckSSL      bool
+	Threshold     string
+	Retries       string
+	Hostname      string
+	Port          string
+	Timeout       string
+	Description   string
+	IgnoreTLS     bool
+	GroupID       string
 }
 
 func latencySparkline(latencies []time.Duration, width int) string {
@@ -277,13 +279,15 @@ func (m Model) viewSitesTab() string {
 
 func (m *Model) initSiteHuhForm() tea.Cmd {
 	m.siteFormData = &siteFormData{
-		SiteType:  "http",
-		Interval:  "60",
-		Threshold: "7",
-		Retries:   "0",
-		Timeout:   "5",
-		Port:      "0",
-		GroupID:   "0",
+		SiteType:      "http",
+		Method:        "GET",
+		AcceptedCodes: "200-299",
+		Interval:      "60",
+		Threshold:     "7",
+		Retries:       "0",
+		Timeout:       "5",
+		Port:          "0",
+		GroupID:       "0",
 	}
 
 	if m.editID > 0 {
@@ -303,6 +307,8 @@ func (m *Model) initSiteHuhForm() tea.Cmd {
 				m.siteFormData.Description = site.Description
 				m.siteFormData.IgnoreTLS = site.IgnoreTLS
 				m.siteFormData.GroupID = strconv.Itoa(site.ParentID)
+				m.siteFormData.Method = site.Method
+				m.siteFormData.AcceptedCodes = site.AcceptedCodes
 				break
 			}
 		}
@@ -432,6 +438,24 @@ func (m *Model) initSiteHuhForm() tea.Cmd {
 		).Title("Connection").WithHideFunc(func() bool {
 			return m.siteFormData.SiteType == "group"
 		}),
+		huh.NewGroup(
+			huh.NewSelect[string]().Title("HTTP Method").
+				Options(
+					huh.NewOption("GET", "GET"),
+					huh.NewOption("POST", "POST"),
+					huh.NewOption("PUT", "PUT"),
+					huh.NewOption("PATCH", "PATCH"),
+					huh.NewOption("DELETE", "DELETE"),
+					huh.NewOption("HEAD", "HEAD"),
+					huh.NewOption("OPTIONS", "OPTIONS"),
+				).Value(&m.siteFormData.Method),
+			huh.NewInput().Title("Accepted Status Codes").
+				Placeholder("200-299").
+				Description("Ranges (200-299) and singles (301) separated by commas").
+				Value(&m.siteFormData.AcceptedCodes),
+		).Title("HTTP Settings").WithHideFunc(func() bool {
+			return m.siteFormData.SiteType != "http"
+		}),
 		huh.NewGroup(
 			huh.NewConfirm().Title("Monitor SSL Certificate?").
 				Value(&m.siteFormData.CheckSSL),
@@ -503,6 +527,8 @@ func (m *Model) submitSiteForm() {
 		Description:     d.Description,
 		IgnoreTLS:       d.IgnoreTLS,
 		ParentID:        groupID,
+		Method:          d.Method,
+		AcceptedCodes:   d.AcceptedCodes,
 	}
 
 	if m.editID > 0 {