feat(worker)!: promote to v1.0.0 — add Len() to Provider, bump deps to v1

Add Len() int to Provider interface; returns current queue depth for
observability and test assertions. Bump launcher and logz to v1.0.1.
Go directive bumped to 1.26. API committed as stable.

.gitea/CODEOWNERS

@@ -0,0 +1 @@
+* @go/CoreDevelopers @go/Agents

CHANGELOG.md

@@ -5,6 +5,25 @@ All notable changes to this module will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this module adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.0] - 2026-05-12
+
+### Added
+
+- `Len() int` on `Provider` — returns the current number of tasks waiting in the queue.
+  Useful for observability, logging backpressure state, and tests.
+
+### Changed
+
+- Go directive bumped from 1.25 to 1.26
+- `launcher` and `logz` dependencies bumped to v1.0.1
+
+### Stabilization
+
+- API committed as stable. `Task`, `Provider`, `Component`, `Config`, and `New` are
+  unchanged from v0.9.0 except for the addition of `Len`.
+
+[1.0.0]: https://code.nochebuena.dev/go/worker/compare/v0.9.0...v1.0.0
+
 ## [0.9.0] - 2026-03-18
 
 ### Added

go.mod

@@ -1,8 +1,8 @@
 module code.nochebuena.dev/go/worker
 
-go 1.25
+go 1.26
 
 require (
-	code.nochebuena.dev/go/launcher v0.9.0
-	code.nochebuena.dev/go/logz v0.9.0
+	code.nochebuena.dev/go/launcher v1.0.1
+	code.nochebuena.dev/go/logz v1.0.1
 )

go.sum

@@ -1,4 +1,4 @@
-code.nochebuena.dev/go/launcher v0.9.0 h1:dJHonA9Xm03AQKK0919FJaQn9ZKHZ+RZfB9yxjnx3TA=
-code.nochebuena.dev/go/launcher v0.9.0/go.mod h1:IBtntmbnyddukjEhxlc7Ysdzz9nZsnd9+8FzAIHt77g=
-code.nochebuena.dev/go/logz v0.9.0 h1:wfV7vtI4V/8ED7Hm31Fbql7Y5iOGrlHN4X8Z5ajTZZE=
-code.nochebuena.dev/go/logz v0.9.0/go.mod h1:qODhSbKb+tWE7rdhHLcKweiP5CgwIaWoZxadCT3bQV8=
+code.nochebuena.dev/go/launcher v1.0.1 h1:hbPV8jNtyxfchrT7igzz3M2tKGI3bm8uWkHBXRvSPgg=
+code.nochebuena.dev/go/launcher v1.0.1/go.mod h1:1KwndVuqm31JN9Dpl9YvOmlogPlKKzoDMo9aRFkYwmM=
+code.nochebuena.dev/go/logz v1.0.1 h1:kK9aZo19L208CwCr2D/dbSOMaOv62cXsigMSsdFu+8Y=
+code.nochebuena.dev/go/logz v1.0.1/go.mod h1:YNpNm03fURm2v0ySh/477z9AJhtfRcd9rFOW6fFqgNM=

worker.go

@@ -16,6 +16,8 @@ type Task func(ctx context.Context) error
 type Provider interface {
 	// Dispatch queues a task. Returns false if the queue is full (backpressure).
 	Dispatch(task Task) bool
+	// Len returns the current number of tasks waiting in the queue.
+	Len() int
 }
 
 // Component adds lifecycle management to Provider.
@@ -103,6 +105,8 @@ func (w *workerComponent) OnStop() error {
 	return nil
 }
 
+func (w *workerComponent) Len() int { return len(w.taskQueue) }
+
 func (w *workerComponent) Dispatch(task Task) bool {
 	select {
 	case w.taskQueue <- task:

worker_test.go

@@ -180,6 +180,22 @@ func TestWorker_TaskError(t *testing.T) {
 	c.OnStop() // should not panic
 }
 
+func TestWorker_Len(t *testing.T) {
+	c := New(newLogger(), Config{PoolSize: 1, BufferSize: 10, ShutdownTimeout: time.Second})
+	if err := c.OnInit(); err != nil {
+		t.Fatalf("OnInit: %v", err)
+	}
+	// Before start, workers are not running — queued tasks stay in the channel.
+	blocked := make(chan struct{})
+	c.Dispatch(func(ctx context.Context) error { <-blocked; return nil })
+	c.Dispatch(func(ctx context.Context) error { <-blocked; return nil })
+	if got := c.Len(); got != 2 {
+		t.Errorf("Len() = %d, want 2", got)
+	}
+	close(blocked)
+	_ = c.OnStop()
+}
+
 func TestWorker_Lifecycle(t *testing.T) {
 	c := New(newLogger(), Config{PoolSize: 2, BufferSize: 10, ShutdownTimeout: time.Second})
 	if err := c.OnInit(); err != nil {