Extract timing constants to constants package (gt-795e8)

Added 6 timing constants:
- ShutdownNotifyDelay (500ms)
- ClaudeStartTimeout (15s)
- ShellReadyTimeout (5s)
- DefaultDebounceMs (100)
- DefaultDisplayMs (5000)
- PollInterval (100ms)

Updated 7 files to use these constants instead of magic numbers.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/cmd/crew_at.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"time"
 
 	"github.com/spf13/cobra"
 	"github.com/steveyegge/gastown/internal/config"
@@ -106,7 +105,7 @@ func runCrewAt(cmd *cobra.Command, args []string) error {
 		_ = t.ConfigureGasTownSession(sessionID, theme, r.Name, name, "crew")
 
 		// Wait for shell to be ready after session creation
-		if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+		if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 			return fmt.Errorf("waiting for shell: %w", err)
 		}
 

internal/cmd/crew_lifecycle.go

@@ -141,7 +141,7 @@ func runCrewRefresh(cmd *cobra.Command, args []string) error {
 	_ = t.SetEnvironment(sessionID, "GT_CREW", name)
 
 	// Wait for shell to be ready
-	if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+	if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 		return fmt.Errorf("waiting for shell: %w", err)
 	}
 
@@ -236,7 +236,7 @@ func runCrewRestart(cmd *cobra.Command, args []string) error {
 	_ = t.ConfigureGasTownSession(sessionID, theme, r.Name, name, "crew")
 
 	// Wait for shell to be ready
-	if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+	if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 		return fmt.Errorf("waiting for shell: %w", err)
 	}
 
@@ -250,11 +250,11 @@ func runCrewRestart(cmd *cobra.Command, args []string) error {
 
 	// Wait for Claude to start, then prime it
 	shells := constants.SupportedShells
-	if err := t.WaitForCommand(sessionID, shells, 15*time.Second); err != nil {
+	if err := t.WaitForCommand(sessionID, shells, constants.ClaudeStartTimeout); err != nil {
 		style.PrintWarning("Timeout waiting for Claude to start: %v", err)
 	}
 	// Give Claude time to initialize after process starts
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(constants.ShutdownNotifyDelay)
 	if err := t.SendKeys(sessionID, "gt prime"); err != nil {
 		// Non-fatal: Claude started but priming failed
 		style.PrintWarning("Could not send prime command: %v", err)
@@ -358,7 +358,7 @@ func runCrewRestartAll() error {
 		crewRig = savedRig
 
 		// Small delay between restarts to avoid overwhelming the system
-		time.Sleep(500 * time.Millisecond)
+		time.Sleep(constants.ShutdownNotifyDelay)
 	}
 
 	fmt.Println()
@@ -402,7 +402,7 @@ func restartCrewSession(rigName, crewName, clonePath string) error {
 	_ = t.ConfigureGasTownSession(sessionID, theme, rigName, crewName, "crew")
 
 	// Wait for shell to be ready
-	if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+	if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 		return fmt.Errorf("waiting for shell: %w", err)
 	}
 
@@ -415,10 +415,10 @@ func restartCrewSession(rigName, crewName, clonePath string) error {
 
 	// Wait for Claude to start, then prime it
 	shells := constants.SupportedShells
-	if err := t.WaitForCommand(sessionID, shells, 15*time.Second); err != nil {
+	if err := t.WaitForCommand(sessionID, shells, constants.ClaudeStartTimeout); err != nil {
 		// Non-fatal warning
 	}
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(constants.ShutdownNotifyDelay)
 	if err := t.SendKeys(sessionID, "gt prime"); err != nil {
 		// Non-fatal
 	}

internal/cmd/start.go

@@ -459,7 +459,7 @@ func runGracefulShutdown(t *tmux.Tmux, gtSessions []string, townRoot string) err
 	shutdownMsg := "[SHUTDOWN] Gas Town is shutting down. Please save your state and update your handoff bead, then type /exit or wait to be terminated."
 	for _, sess := range gtSessions {
 		// Small delay then send the message
-		time.Sleep(500 * time.Millisecond)
+		time.Sleep(constants.ShutdownNotifyDelay)
 		_ = t.SendKeys(sess, shutdownMsg) // best-effort notification
 	}
 
@@ -748,10 +748,10 @@ func runStartCrew(cmd *cobra.Command, args []string) error {
 			}
 			// Wait for Claude to start, then prime
 			shells := constants.SupportedShells
-			if err := t.WaitForCommand(sessionID, shells, 15*time.Second); err != nil {
+			if err := t.WaitForCommand(sessionID, shells, constants.ClaudeStartTimeout); err != nil {
 				style.PrintWarning("Timeout waiting for Claude to start: %v", err)
 			}
-			time.Sleep(500 * time.Millisecond)
+			time.Sleep(constants.ShutdownNotifyDelay)
 			if err := t.SendKeys(sessionID, "gt prime"); err != nil {
 				style.PrintWarning("Could not send prime command: %v", err)
 			}
@@ -779,7 +779,7 @@ func runStartCrew(cmd *cobra.Command, args []string) error {
 		_ = t.ConfigureGasTownSession(sessionID, theme, rigName, name, "crew")
 
 		// Wait for shell to be ready after session creation
-		if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+		if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 			return fmt.Errorf("waiting for shell: %w", err)
 		}
 
@@ -790,12 +790,12 @@ func runStartCrew(cmd *cobra.Command, args []string) error {
 
 		// Wait for Claude to start
 		shells := constants.SupportedShells
-		if err := t.WaitForCommand(sessionID, shells, 15*time.Second); err != nil {
+		if err := t.WaitForCommand(sessionID, shells, constants.ClaudeStartTimeout); err != nil {
 			style.PrintWarning("Timeout waiting for Claude to start: %v", err)
 		}
 
 		// Give Claude time to initialize after process starts
-		time.Sleep(500 * time.Millisecond)
+		time.Sleep(constants.ShutdownNotifyDelay)
 
 		// Send gt prime to initialize context
 		if err := t.SendKeys(sessionID, "gt prime"); err != nil {
@@ -913,7 +913,7 @@ func startCrewMember(rigName, crewName, townRoot string) error {
 	_ = t.SetCrewCycleBindings(sessionID)
 
 	// Wait for shell to be ready
-	if err := t.WaitForShellReady(sessionID, 5*time.Second); err != nil {
+	if err := t.WaitForShellReady(sessionID, constants.ShellReadyTimeout); err != nil {
 		return fmt.Errorf("waiting for shell: %w", err)
 	}
 
@@ -924,12 +924,12 @@ func startCrewMember(rigName, crewName, townRoot string) error {
 
 	// Wait for Claude to start
 	shells := constants.SupportedShells
-	if err := t.WaitForCommand(sessionID, shells, 15*time.Second); err != nil {
+	if err := t.WaitForCommand(sessionID, shells, constants.ClaudeStartTimeout); err != nil {
 		// Non-fatal: Claude might still be starting
 	}
 
 	// Give Claude time to initialize
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(constants.ShutdownNotifyDelay)
 
 	// Send gt prime to initialize context (non-fatal: session works without priming)
 	_ = t.SendKeys(sessionID, "gt prime")