feat: rename Docker Watcher to Tinyforge

Rebrand the project as Tinyforge to reflect its evolution from a Docker
container watcher into a self-hosted mini CI/deployment platform.

Rename covers: Go module path, Docker labels, DB/config filenames,
JWT issuer, Dockerfile binary, docker-compose, CI workflows, frontend
i18n, README with static sites docs, and all code comments.

internal/docker/container.go

@@ -36,16 +36,16 @@ type ContainerConfig struct {
 	NetworkID string
 
 	// Labels are additional labels to apply to the container.
-	// docker-watcher management labels are added automatically via Project, Stage, and InstanceID.
+	// Tinyforge management labels are added automatically via Project, Stage, and InstanceID.
 	Labels map[string]string
 
-	// Project is the docker-watcher project name (used for labelling).
+	// Project is the Tinyforge project name (used for labelling).
 	Project string
 
-	// Stage is the docker-watcher stage name (used for labelling).
+	// Stage is the Tinyforge stage name (used for labelling).
 	Stage string
 
-	// InstanceID is the docker-watcher instance ID (used for labelling).
+	// InstanceID is the Tinyforge instance ID (used for labelling).
 	InstanceID string
 
 	// Mounts is a list of bind mounts to attach to the container.
@@ -88,7 +88,7 @@ func (c *Client) CreateContainer(ctx context.Context, cfg ContainerConfig) (stri
 		}
 	}
 
-	// Merge docker-watcher labels with any additional labels.
+	// Merge Tinyforge labels with any additional labels.
 	labels := make(map[string]string)
 	for k, v := range cfg.Labels {
 		labels[k] = v
@@ -198,7 +198,7 @@ func (c *Client) RestartContainer(ctx context.Context, containerID string, timeo
 	return nil
 }
 
-// ManagedContainer holds summary information about a container managed by docker-watcher.
+// ManagedContainer holds summary information about a container managed by Tinyforge.
 type ManagedContainer struct {
 	ID         string
 	Name       string
@@ -212,12 +212,12 @@ type ManagedContainer struct {
 }
 
 // ListContainers returns all containers matching the given label filters.
-// Pass nil or an empty map to list all docker-watcher managed containers.
+// Pass nil or an empty map to list all Tinyforge managed containers.
 // Label filters are key=value pairs applied as Docker label filters.
 func (c *Client) ListContainers(ctx context.Context, labelFilters map[string]string) ([]ManagedContainer, error) {
 	filterArgs := make(client.Filters)
 
-	// Always filter by the docker-watcher project label to only return managed containers.
+	// Always filter by the Tinyforge project label to only return managed containers.
 	filterArgs.Add("label", LabelProject)
 
 	for k, v := range labelFilters {