WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

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

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

vendor/github.com/jbenet/go-temp-err-catcher/temp_err_catcher.go

@@ -0,0 +1,126 @@
+// Package temperrcatcher provides a TempErrCatcher object,
+// which implements simple error-retrying functionality.
+package temperrcatcher
+
+import (
+	"errors"
+	"time"
+)
+
+// InitialDelay governs how long to wait the first time.
+// This is defaulted to time.Millisecond, which makes sense
+// for network listener failures. You may want a much smaller
+// delay. You can configure this package wide, or in each
+// TempErrCatcher
+var InitialDelay = time.Millisecond
+
+// Temporary is an interface errors can implement to
+// ensure they are correctly classified by the default
+// TempErrCatcher classifier
+type Temporary interface {
+	Temporary() bool
+}
+
+// ErrIsTemporary returns whether an error is Temporary(),
+// iff it implements the Temporary interface.
+func ErrIsTemporary(e error) bool {
+	var te Temporary
+	ok := errors.As(e, &te)
+	return ok && te.Temporary()
+}
+
+// TempErrCatcher catches temporary errors for you. It then sleeps
+// for a bit before returning (you should then try again). This may
+// seem odd, but it's exactly what net/http does:
+// http://golang.org/src/net/http/server.go?s=51504:51550#L1728
+//
+// You can set a few options in TempErrCatcher. They all have defaults
+// so a zero TempErrCatcher is ready to be used:
+//
+//  var c tec.TempErrCatcher
+//  c.IsTemporary(tempErr)
+//
+type TempErrCatcher struct {
+	IsTemp func(error) bool    // the classifier to use. default: ErrIsTemporary
+	Wait   func(time.Duration) // the wait func to call. default: time.Sleep
+	Max    time.Duration       // the maximum time to wait. default: time.Second
+	Start  time.Duration       // the delay to start with. default: InitialDelay
+	delay  time.Duration
+	last   time.Time
+}
+
+func (tec *TempErrCatcher) init() {
+	if tec.Max == 0 {
+		tec.Max = time.Second
+	}
+	if tec.IsTemp == nil {
+		tec.IsTemp = ErrIsTemporary
+	}
+	if tec.Wait == nil {
+		tec.Wait = time.Sleep
+	}
+	if tec.Start == 0 {
+		tec.Start = InitialDelay
+	}
+}
+
+// IsTemporary checks whether an error is temporary. It will call
+// tec.Wait before returning, with a delay. The delay is also
+// doubled, so we do not constantly spin. This is the strategy
+// net.Listener uses.
+//
+// Note: you will want to call Reset() if you get a success,
+// so that the stored delay is brough back to 0.
+func (tec *TempErrCatcher) IsTemporary(e error) bool {
+	tec.init()
+	if tec.IsTemp(e) {
+		now := time.Now()
+		if now.Sub(tec.last) > (tec.delay * 5) {
+			// this is a "new streak" of temp failures. reset.
+			tec.Reset()
+		}
+
+		if tec.delay == 0 { // init case.
+			tec.delay = tec.Start
+		} else {
+			tec.delay *= 2
+		}
+
+		if tec.delay > tec.Max {
+			tec.delay = tec.Max
+		}
+		tec.Wait(tec.delay)
+		tec.last = now
+		return true
+	}
+	tec.Reset() // different failure. call reset
+	return false
+}
+
+// Reset sets the internal delay counter to 0
+func (tec *TempErrCatcher) Reset() {
+	tec.delay = 0
+}
+
+// ErrTemporary wraps any error and implements Temporary function.
+//
+//   err := errors.New("beep boop")
+//   var c tec.TempErrCatcher
+//   c.IsTemporary(err)              // false
+//   c.IsTemporary(tec.ErrTemp{err}) // true
+//
+type ErrTemporary struct {
+	Err error
+}
+
+func (e ErrTemporary) Temporary() bool {
+	return true
+}
+
+func (e ErrTemporary) Error() string {
+	return e.Err.Error()
+}
+
+func (e ErrTemporary) String() string {
+	return e.Error()
+}