refactor: rename project videnc-vibe -> av1dae

Rename the Go module, the cmd/ entrypoint dir, the binary, the default config
dir (~/.config/av1dae/), the Docker image/compose service, and all docs and
the dashboard wordmark. No behavioral change — import paths and identifiers
only.

internal/watcher/watcher.go

@@ -8,7 +8,7 @@ import (
 	"sort"
 	"time"
 
-	"videnc-vibe/pkg/types"
+	"av1dae/pkg/types"
 )
 
 // failureBackoff is how long we skip a file after processFn returned an error