fix: plan mode exception for review log + telemetry writes (v0.9.0.1) (#234)

* fix: plan mode exception for review log + telemetry writes

Add explicit plan-mode exception notes to review log sections in all
3 plan review skill templates and the telemetry section in gen-skill-docs.ts.
When Claude runs in plan mode, it self-censors bash writes — but review
logging and telemetry write to ~/.gstack/ (user metadata, not project
files). The preamble already writes to the same directory successfully.
The exception note gives Claude a reasoning chain: safety argument,
precedent, and consequence of skipping.

* chore: regenerate Codex/agents SKILL.md files with plan-mode exception

* chore: bump version and changelog (v0.9.0.1)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* feat: community-first telemetry opt-in with anonymous fallback

Default opt-in is now "Help gstack get better!" (community mode with
stable device ID). If declined, offers anonymous mode as a softer
alternative before fully off.

* chore: regenerate SKILL.md files with community-first telemetry prompt

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-0.9.0
+0.9.0.1