docs: record managed runtime placements

SKILL.md

@@ -14,7 +14,7 @@ Use this helper when image generation or editing should reach server6 directly i
 - Keep the durable source in the Gitea repo `shujakuin/skill-shujkimagegen-api`; treat `ai-infra/skills/sources/shujkimagegen-api/` and HOME runtime copies as managed mirrors.
 - Do not place this skill under the infra repo's `.agents/skills/` or manage it through cc-switch WebDAV.
 - Treat this as a thin wrapper around the system `imagegen` CLI; do not copy or patch the system script.
-- The current management state is repo source only. Do not create a HOME runtime placement unless the user explicitly requests it.
+- Current HOME runtime placements are `pc` and `a100` under `~/.agents/skills/shujkimagegen-api/`. Update only explicitly modeled placements.
 
 ## Endpoint
 
@@ -26,10 +26,10 @@ The `/v1` suffix is required because `/models` is an application page while `/v1
 ## Workflow
 
 1. Use the system `imagegen` skill for prompt, composition, and asset decisions.
-2. Run the repo source wrapper while the skill remains source-only:
+2. Run the HOME runtime wrapper:
 
    ```bash
-   python3 ai-infra/skills/sources/shujkimagegen-api/scripts/shujk_imagegen.py generate \
+   python3 ~/.agents/skills/shujkimagegen-api/scripts/shujk_imagegen.py generate \
      --prompt "..." \
      --out output/imagegen/example.png
    ```
@@ -37,7 +37,7 @@ The `/v1` suffix is required because `/models` is an application page while `/v1
 3. For edits, pass through the system CLI arguments:
 
    ```bash
-   python3 ai-infra/skills/sources/shujkimagegen-api/scripts/shujk_imagegen.py edit \
+   python3 ~/.agents/skills/shujkimagegen-api/scripts/shujk_imagegen.py edit \
      --image input.png \
      --prompt "..." \
      --out output/imagegen/edited.png
@@ -46,13 +46,13 @@ The `/v1` suffix is required because `/models` is an application page while `/v1
 4. Inspect non-secret configuration with:
 
    ```bash
-   python3 ai-infra/skills/sources/shujkimagegen-api/scripts/shujk_imagegen.py \
+   python3 ~/.agents/skills/shujkimagegen-api/scripts/shujk_imagegen.py \
      --print-config-redacted
    ```
 
 5. Save project-bound assets inside the active workspace and report the output path and final prompt.
 
-After an explicit HOME runtime placement, use the equivalent path under `~/.agents/skills/shujkimagegen-api/`.
+For source validation before placement, use the equivalent wrapper under the standalone checkout or infra mirror.
 
 ## Installation Validation