* fix(skills): treat only top-level scripts/ paths as executable in skill_manage
write_file classified a support file as executable content with a substring
test ("scripts/" in path), so any support path merely containing "scripts/"
(e.g. references/scripts/overview.md or templates/my-scripts/setup.md) was
moderated as executable: that scan requires an exact "allow" decision and
hard-blocks when the moderation model is unavailable. Executable content is
now exactly a file under the skill's top-level scripts/ directory, matching
the scripts/ member rule in skills/package_files.py and the same Path
semantics the storage layer already used to validate the support path.
* refactor(skills): share the scripts/ member rule with skill_manage
The write_file executable gate re-derived the top-level scripts/ member rule
locally. Use package_files.is_scripts_member instead so the gate, installer,
and SkillScan stay in lockstep.
Extend the regression test to pin scripts/sub/run.sh and ./scripts/run.sh as
executable content, plus the shared helper's normalization.
* fix(skills): moderate nested code files as executable content in skill_manage
The write_file executable gate classified only top-level <scripts/> members as
code, so runnable support files elsewhere in the package
(references/scripts/helper.py, templates/my-scripts/run.sh,
assets/my-scripts/tool.js) and extensionless shebang files fell back to static
moderation: a warn decision, or an unavailable moderation model with
security_fail_closed=false, wrote them to disk. The deterministic package scan
does not enforce the allow-only model verdict, and this write path publishes
through write_custom_skill without running the mutations CandidateScanner, so no
later check restores executable moderation.
Classify with the complete shared code-file rule from
deerflow/skills/package_files.py (scripts members, code suffixes, and
extensionless shebang files) instead of the scripts-member rule alone, and keep
Markdown/data support files on the static tier. Extend the regression suite with
the code-suffix/ shebang cases plus the warn and unavailable-provider outcomes.
