docs: add software-vision and android-backup-restore skills with android scripts

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

coding-dev.md

@@ -26,6 +26,14 @@ reasons attached, not style trivia — most exist because ignoring them caused a
 > When in doubt about which mode you are in, **ask** — it changes the answer on strictness,
 > file size, typing, and test policy all at once.
 
+> [!IMPORTANT]
+> **A new software idea starts with research, not code.** When the user describes a tool, app,
+> service, or other project they want built, follow
+> [`software-vision.md`](skills-public/software-vision.md) first: find existing projects to use,
+> extend, or fork (web searches and user reviews first, then training-data recall, then
+> throwaway clones), and present the options before scaffolding anything — unless the user
+> explicitly opted out of research.
+
 Per-language specifics live in [`code-languages/`](skills-public/code-languages/):
 
 | Language | Rules |
@@ -115,7 +123,9 @@ a fresh implementation will rediscover slowly and incompletely.
 
 Before hand-rolling any subsystem — a protocol client, a parser, a date formatter, a
 debounce, a retry/backoff, a semver comparator — **search first and state the finding.**
-Prefer official/first-party SDKs over third-party wrappers.
+Prefer official/first-party SDKs over third-party wrappers. The same ordering applies to a
+whole project idea, not just a subsystem — see
+[`software-vision.md`](skills-public/software-vision.md).
 
 ### The corollary: new generic code becomes its own package