feat(invites): team invite links — admin create/revoke, public accept (#42)

* feat(branding): white-label — public /branding, admin write, shell theming

app_settings branding.* keys (product name, logo/favicon URLs, accent
color, docs/support links). Public GET /branding so login and shell
theme pre-auth; admin writes via PUT /settings.

useBranding() applies document.title, accent CSS var and favicon;
BrandWordmark replaces hardcoded wordmarks; admin Platform settings
gain a Branding form. MCP containr_branding_get + settings_update.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* feat(invites): team invite links — admin create/revoke, public accept

Admins mint single-use invite links (sha256-hashed token at rest,
optional email binding, configurable TTL). Public endpoints let the
accept page validate the link and register — working even while
public signup is disabled.

- migration + sqlc queries/model for user_invites
- POST /admin/invites (returns one-time token+url), GET list, DELETE revoke
- GET /auth/invites/:token public validation, POST /auth/accept-invite
- CLI containr invites list|create|revoke; MCP invites tools
- /auth/accept-invite page (expired/used/invalid states, bound-email lock)
- Admin page Team invites section: create, copy link, revoke
- OpenAPI + generated types + CLI guide

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

---------

Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/backend/internal/cli/commands/invites.go

@@ -0,0 +1,92 @@
+package commands
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var inviteEmail string
+var inviteTTL int
+
+// InvitesCmd manages team invite links (admin).
+var InvitesCmd = &cobra.Command{
+	Use:   "invites",
+	Short: "Manage team invite links (admin)",
+}
+
+var inviteListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List invites",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		c, err := client()
+		if err != nil {
+			return err
+		}
+		data, err := c.Do("GET", "/admin/invites", nil)
+		if err != nil {
+			return err
+		}
+		items, err := unwrapList(data, "invites")
+		if err != nil {
+			return err
+		}
+		rows := make([][]string, 0, len(items))
+		for _, i := range items {
+			state := "open"
+			if _, used := i["used_at"]; used && i["used_at"] != nil {
+				state = "used"
+			}
+			rows = append(rows, []string{
+				str(i, "id"), str(i, "email"), str(i, "expires_at"), state,
+			})
+		}
+		printRows(data, []string{"ID", "EMAIL", "EXPIRES", "STATE"}, rows)
+		return nil
+	},
+}
+
+var inviteCreateCmd = &cobra.Command{
+	Use:   "create",
+	Short: "Create an invite link (--email to bind, --hours for TTL)",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		c, err := client()
+		if err != nil {
+			return err
+		}
+		req := map[string]interface{}{}
+		if cmd.Flags().Changed("email") {
+			req["email"] = inviteEmail
+		}
+		if cmd.Flags().Changed("hours") {
+			req["expires_in_hours"] = inviteTTL
+		}
+		data, err := c.Do("POST", "/admin/invites", req)
+		if err != nil {
+			return err
+		}
+		PrintRaw(data)
+		return nil
+	},
+}
+
+var inviteRevokeCmd = &cobra.Command{
+	Use:   "revoke <id>",
+	Short: "Revoke an invite",
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if !Confirm("Revoke invite " + args[0] + "?") {
+			return &APIError{Message: "aborted (pass --yes to skip confirmation)", ExitCode: ExitError}
+		}
+		c, err := client()
+		if err != nil {
+			return err
+		}
+		_, err = c.Do("DELETE", "/admin/invites/"+args[0], nil)
+		return err
+	},
+}
+
+func init() {
+	inviteCreateCmd.Flags().StringVar(&inviteEmail, "email", "", "bind invite to this email")
+	inviteCreateCmd.Flags().IntVar(&inviteTTL, "hours", 168, "invite lifetime in hours (1-2160)")
+	InvitesCmd.AddCommand(inviteListCmd, inviteCreateCmd, inviteRevokeCmd)
+}

app/backend/internal/cli/root.go

@@ -90,6 +90,7 @@ func init() {
 	rootCmd.AddCommand(commands.WebhooksCmd)
 	rootCmd.AddCommand(commands.OperationsCmd)
 	rootCmd.AddCommand(commands.BannersCmd)
+	rootCmd.AddCommand(commands.InvitesCmd)
 	rootCmd.AddCommand(commands.UpCmd)
 }