Tighten optimized workflow masters

optimized/README.md

@@ -8,6 +8,14 @@ The `optimized/` tree stores the cleaned-up workflows built from analyzing what
 
 The `optimized/notes/` tree stores accumulated optimization notes so future review passes can reuse prior judgments instead of re-reading every collected workflow from scratch.
 
+## Maintenance rule
+
+Keep the `optimized/` lane deliberately small.
+
+- Each category should usually expose one maintained default.
+- A category may keep a second maintained challenger or specialist path when it serves a distinct job.
+- Historical experiments, stepping stones, and source imports belong in `models/` or `custom/`, not as long-lived `optimized/` masters.
+
 ## Purpose
 
 These workflows are intended to become the practical default choices for each category after comparing:
@@ -26,13 +34,13 @@ These workflows are intended to become the practical default choices for each ca
 - `text-to-video/`
 - `upscale-restoration/`
 
-## Current best-current masters
+## Current maintained masters
 
 - `text-to-image/zimage-turbo-3070-fast-start/`
-- `image-edit/zimage-turbo-3070-inpaint-start/`
 - `image-edit/flux2klein-9b-fp8-edit-master/`
-- `image-to-video/ltx23-3070-simple-master/`
-- `image-to-video/minimax-h3-3070-single-10s-1152x640-r2v-master/`
+- `image-edit/zimage-turbo-3070-inpaint-start/`
+- `image-to-video/minimax-h3-best-current-r2v-master-480p-3x10s/`
+- `image-to-video/minimax-h3-contex-loop-3070-safe-60s-awq-int8/`
 - `text-to-video/minimax-h3-3070-turbo-master/`
 
 ## Workflow format