feat: Host CRUD complete — edit, full form fields, connect, toast

- Add UpdateHost handler + PUT /hosts/:id route
- CreateHost now accepts all fields (port, username, auth, notes)
- host_modal.html: full form with port, username, auth type toggle, edit mode
- host_list.html: edit button dispatches edit-host event with host data
- Connect button links to /terminal?host={id} for pre-selection
- Terminal page reads selected host from query param
- Toast notification system via Alpine.js events
- Add default template function for fallback values

app/backend/internal/handler/dashboard.go

@@ -1,6 +1,8 @@
 package handler
 
 import (
+	"strconv"
+
 	"github.com/gofiber/fiber/v2"
 	"git.tukangketik.id/swanadiva/hostkeeper/v2/internal/model"
 	"git.tukangketik.id/swanadiva/hostkeeper/v2/internal/store"
@@ -20,12 +22,12 @@ var navItems = []fiber.Map{
 func Dashboard(c *fiber.Ctx) error {
 	hosts := hostStore.All()
 	return c.Render("index", fiber.Map{
-		"View":   "hosts",
-		"Title":  "Hosts",
-		"Hosts":  hosts,
-		"Active": countByStatus(hosts, "active"),
-		"Offline": countByStatus(hosts, "offline"),
-		"NavItems":  navItems,
+		"View":     "hosts",
+		"Title":    "Hosts",
+		"Hosts":    hosts,
+		"Active":   countByStatus(hosts, "active"),
+		"Offline":  countByStatus(hosts, "offline"),
+		"NavItems": navItems,
 	})
 }
 
@@ -34,28 +36,103 @@ func DashboardList(c *fiber.Ctx) error {
 	filter := c.Query("filter", "all")
 	hosts := hostStore.Search(q, filter)
 	return c.Render("host_list", fiber.Map{
-		"Hosts":  hosts,
-		"Active": countByStatus(hosts, "active"),
+		"Hosts":   hosts,
+		"Active":  countByStatus(hosts, "active"),
 		"Offline": countByStatus(hosts, "offline"),
 	})
 }
 
+func parsePort(s string, def int) int {
+	i, err := strconv.Atoi(s)
+	if err != nil || i < 1 || i > 65535 {
+		return def
+	}
+	return i
+}
+
 func CreateHost(c *fiber.Ctx) error {
 	name := c.FormValue("name")
 	ip := c.FormValue("ip")
-	os := c.FormValue("os")
-	provider := c.FormValue("provider")
-	hostType := c.FormValue("type")
-
 	if name == "" || ip == "" {
 		return c.Status(400).SendString("name and ip required")
 	}
 
-	hostStore.Add(name, ip, os, provider, hostType)
+	h := model.Host{
+		Name:     name,
+		IP:       ip,
+		OS:       c.FormValue("os"),
+		Provider: c.FormValue("provider"),
+		Type:     c.FormValue("type"),
+		Port:     parsePort(c.FormValue("port"), 22),
+		Username: c.FormValue("username"),
+		AuthType: c.FormValue("authType"),
+		Password: c.FormValue("password"),
+		Hostname: c.FormValue("hostname"),
+		Notes:    c.FormValue("notes"),
+	}
+	if h.Username == "" {
+		h.Username = "root"
+	}
+	if h.AuthType == "" {
+		h.AuthType = "key"
+	}
+
+	created := hostStore.AddFull(h)
+	hosts := hostStore.All()
+	_ = created
+	return c.Render("host_list", fiber.Map{
+		"Hosts":   hosts,
+		"Active":  countByStatus(hosts, "active"),
+		"Offline": countByStatus(hosts, "offline"),
+	})
+}
+
+func UpdateHost(c *fiber.Ctx) error {
+	id := c.Params("id")
+	existing, found := hostStore.Get(id)
+	if !found {
+		return c.Status(404).SendString("host not found")
+	}
+
+	if v := c.FormValue("name"); v != "" {
+		existing.Name = v
+	}
+	if v := c.FormValue("ip"); v != "" {
+		existing.IP = v
+	}
+	if v := c.FormValue("os"); v != "" {
+		existing.OS = v
+	}
+	if v := c.FormValue("provider"); v != "" {
+		existing.Provider = v
+	}
+	if v := c.FormValue("type"); v != "" {
+		existing.Type = v
+	}
+	if v := c.FormValue("port"); v != "" {
+		existing.Port = parsePort(v, 22)
+	}
+	if v := c.FormValue("username"); v != "" {
+		existing.Username = v
+	}
+	if v := c.FormValue("authType"); v != "" {
+		existing.AuthType = v
+	}
+	if v := c.FormValue("password"); v != "" {
+		existing.Password = v
+	}
+	if v := c.FormValue("hostname"); v != "" {
+		existing.Hostname = v
+	}
+	if v := c.FormValue("notes"); v != "" {
+		existing.Notes = v
+	}
+
+	hostStore.Update(existing)
 	hosts := hostStore.All()
 	return c.Render("host_list", fiber.Map{
-		"Hosts":  hosts,
-		"Active": countByStatus(hosts, "active"),
+		"Hosts":   hosts,
+		"Active":  countByStatus(hosts, "active"),
 		"Offline": countByStatus(hosts, "offline"),
 	})
 }

app/backend/internal/handler/terminal.go

@@ -28,12 +28,14 @@ func Terminal(c *fiber.Ctx) error {
 		}
 	}
 	hostsJSON, _ := json.Marshal(available)
+	selectedHost := c.Query("host", "")
 	data := fiber.Map{
-		"View":      "terminal",
-		"Title":     "Terminal",
-		"NavItems":  navItems,
-		"Hosts":     available,
-		"HostsJSON": string(hostsJSON),
+		"View":         "terminal",
+		"Title":        "Terminal",
+		"NavItems":     navItems,
+		"Hosts":        available,
+		"HostsJSON":    string(hostsJSON),
+		"SelectedHost": selectedHost,
 	}
 	if c.Get("HX-Request") != "" {
 		return c.Render("terminal_content", data)