feat: add p key on Connect screen to pair by pasting a device ID

When a device doesn't appear in Pending (e.g. no LAN discovery, or the
other machine hasn't run meshd yet), press p to open the bottom input bar,
paste the full Syncthing device ID, and press enter — equivalent to
`meshd add-device <id>` but directly from the TUI.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: gitcoder89431

README.md

@@ -112,6 +112,7 @@ meshd mcp               start MCP stdio server for Claude integration
 | `k` / `↑` | Navigate up |
 | `enter` | Open selected file/folder in terminal |
 | `r` | Rename device (Connect screen) / refresh (Activity) |
+| `p` | Pair by device ID (Connect screen — paste full ID, press enter) |
 | `a` | Accept pending device |
 | `d` | Dismiss pending device |
 | `s` | Toggle sidebar |

internal/screens/connections.go

@@ -36,6 +36,10 @@ type Connections struct {
 	renaming       bool
 	renameInput    string
 
+	// manual pair-by-ID state
+	pairing   bool
+	pairInput string
+
 	err    error
 	notice string
 }
@@ -90,6 +94,38 @@ func (c Connections) Update(msg tea.Msg) (Screen, tea.Cmd) {
 }
 
 func (c Connections) handleKey(msg tea.KeyPressMsg) (Screen, tea.Cmd) {
+	// pair mode — capture device ID input
+	if c.pairing {
+		switch msg.String() {
+		case "enter":
+			if c.pairInput != "" {
+				client, id := c.client, c.pairInput
+				c.pairing = false
+				c.pairInput = ""
+				return c, func() tea.Msg {
+					return ConnectionActionMsg{Err: client.AcceptDevice(id, "")}
+				}
+			}
+			c.pairing = false
+			c.pairInput = ""
+		case "esc":
+			c.pairing = false
+			c.pairInput = ""
+		case "backspace", "ctrl+h":
+			if len(c.pairInput) > 0 {
+				runes := []rune(c.pairInput)
+				c.pairInput = string(runes[:len(runes)-1])
+			}
+		default:
+			for _, r := range msg.String() {
+				if unicode.IsPrint(r) {
+					c.pairInput += string(r)
+				}
+			}
+		}
+		return c, nil
+	}
+
 	// rename mode — capture input
 	if c.renaming {
 		switch msg.String() {
@@ -153,6 +189,10 @@ func (c Connections) handleKey(msg tea.KeyPressMsg) (Screen, tea.Cmd) {
 				return ConnectionActionMsg{Err: client.DismissDevice(id)}
 			}
 		}
+	case "p":
+		c.pairing = true
+		c.pairInput = ""
+		c.notice = ""
 	}
 	return c, nil
 }
@@ -163,9 +203,9 @@ func (c Connections) View(width, height int) string {
 			Render(fmt.Sprintf("error: %v", c.err))
 	}
 
-	// reserve 2 rows at the bottom for the rename bar when active
+	// reserve 2 rows at the bottom for the rename/pair bar when active
 	contentH := height
-	if c.renaming {
+	if c.renaming || c.pairing {
 		contentH -= 2
 	}
 
@@ -206,11 +246,14 @@ func (c Connections) View(width, height int) string {
 
 	content := strings.Join(rows[:min(len(rows), contentH)], "\n")
 
+	divider := c.theme.Border.Render(strings.Repeat("─", width))
+	cur := c.theme.Accent.Render("█")
+	prefix := c.theme.Accent.Render("> ")
 	if c.renaming {
-		divider := c.theme.Border.Render(strings.Repeat("─", width))
-		prefix := c.theme.Accent.Render("> ")
-		cursor := c.theme.Accent.Render("█")
-		bar := prefix + c.renameInput + cursor
+		bar := prefix + c.renameInput + cur
+		content = content + "\n" + divider + "\n" + bar
+	} else if c.pairing {
+		bar := prefix + c.pairInput + cur
 		content = content + "\n" + divider + "\n" + bar
 	}
 
@@ -293,13 +336,14 @@ func (c Connections) Title() string {
 }
 
 func (c Connections) CapturesKey(msg tea.KeyPressMsg) bool {
-	return c.renaming
+	return c.renaming || c.pairing
 }
 
 func (c Connections) KeyBindings() []key.Binding {
 	return []key.Binding{
 		key.NewBinding(key.WithKeys("j", "k"), key.WithHelp("j/k", "navigate")),
 		key.NewBinding(key.WithKeys("r"), key.WithHelp("r", "rename device")),
+		key.NewBinding(key.WithKeys("p"), key.WithHelp("p", "pair by device ID")),
 		key.NewBinding(key.WithKeys("a"), key.WithHelp("a", "accept pending")),
 		key.NewBinding(key.WithKeys("d"), key.WithHelp("d", "dismiss pending")),
 	}