feat(skills): project-bootstrap@1.11.0 — .gitignore meta-isolation block

Step 1 now ships agent meta-paths inversions (`!.claude/`, `!.tasks/`,
`!.wiki/`, `!.brainstorm/`, `!.archive/`, `!.mcp/`, `!.mcp.json`,
`!MEMORY.md`) so own greenfield/upgrade projects re-enable visibility
against the global `core.excludesFile` cutter (`~/.config/git/ignore`)
that hides obvyaska from forks of upstream open-source. Without it any
fresh bootstrap landed an empty first commit on machines with the global
configured: setup-wiki/setup-tasks/Step 5 created .wiki/.tasks/CLAUDE.md
but git ignored them.

Two cases handled in Step 1:
- no .gitignore → write template (block included unconditionally)
- existing .gitignore → marker-based (`# AI обвеска — слой 2:`)
  append-if-missing; idempotent on re-run

Smoke-tested in %TEMP%\test-bootstrap-meta-iso: all 3 acceptance
criteria pass + negative control (strip block → global hides) +
idempotency (re-run with marker present skips). Source concept:
workshop wiki concepts/meta-out-of-repo.md. Closes board task
[meta-isolation-bootstrap-skill-update].

MINOR bump (1.10.1 → 1.11.0) — new feature, backward-compat.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.wiki/index.md

@@ -36,6 +36,7 @@ Catalog of all wiki pages. One line per page, organized by type. Updated on ever
 - [interns-repo-read-design](concepts/interns-repo-read-design.md) — interns-repo-read-design
 - [hermes-skills-rollout-design](concepts/hermes-skills-rollout-design.md) — hermes-skills-rollout-design
 - [tdd-criteria-design](concepts/tdd-criteria-design.md) — tdd-criteria-design
+- [project-bootstrap-meta-isolation.md](concepts/project-bootstrap-meta-isolation.md) — project-bootstrap@1.11.0 — Step 1 ships meta-isolation block in `.gitignore` (`!.claude/`, `!.tasks/`, `!.wiki/`, ...) so own greenfield/upgrade projects re-enable agent meta-paths against global `core.excludesFile` cutter. Marker-based append-only on existing files; smoke-tested with negative control
 
 ## Packages