feat(setup-wiki, using-wiki): add contradictions/ and open-questions/ as canonical page types

Extends Karpathy LLM Wiki canon with two new artifact types alongside
existing entities/concepts/packages/sources. Inspired by community
discussion that highlighted explicit tracking of surfaced tensions and
unanswered questions as missing aggregation points in the canonical
layout — they currently get scattered into concepts/ or lost in log.md.

Scope is schema-level only — no new ingest behaviour prescribed. Policy
on when to escalate an inline `> **Противоречие:**` flag into a
contradictions/<slug>.md page (and the analogous flow for
open-questions) stays the user's call.

setup-wiki [v1.0.0 → v1.1.0, MINOR — additive page types]:
- Discovery (Phase 1) now requires 6 content dirs for `noop` mode
- Phase 2 plan blocks list new dirs in greenfield + migrate
- CLAUDE.md schema template gains two page-type entries with status
  enums (contradictions: open|resolved|accepted-divergence;
  open-questions: open|answered|obsolete)
- index.md template gains two empty sections
- Phase 4a .gitkeep list, Phase 4b mkdir + touch, Phase 5 verify count
  (four → six dirs), Phase 6 report count all updated
- README.md layout tree + content-dirs sentence

using-wiki [v1.0.0 → v1.1.0, MINOR — additive type values]:
- Prerequisites: four → six content directories
- Page frontmatter type enum: + contradiction | open-question
- Per-type frontmatter extensions documented (status + affects/touches)
- File naming patterns: + contradictions/<slug>.md, open-questions/<slug>.md
- index.md sections-by-type list updated
- README.md mirrors SKILL.md changes

dist/: setup-wiki.skill + using-wiki.skill rebuilt.

project-bootstrap inline reference block intentionally untouched — it's
labelled "Reference (for context only — setup-wiki is the source of
truth)" and drift-tolerant by design.

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

skills/using-wiki/README.md

@@ -86,7 +86,7 @@ line to `log.md` with the findings.
 ```yaml
 ---
 title: Человекочитаемое имя
-type: entity | concept | package | source | overview
+type: entity | concept | package | source | contradiction | open-question | overview
 tags: [short, tokens]
 sources: [../sources/foo.md, ../sources/bar.md]
 updated: 2026-04-21
@@ -94,13 +94,16 @@ updated: 2026-04-21
 ```
 
 Source pages also carry `ingested: YYYY-MM-DD` and `raw_path: ../raw/...`.
+Contradiction pages also carry `status: open | resolved | accepted-divergence` and `affects: [../entities/x.md, ../concepts/y.md]`.
+Open-question pages also carry `status: open | answered | obsolete` and `touches: [../entities/x.md, ../sources/z.md]`.
 
 ### File naming
 
 - `kebab-case.md`, **Latin only**. Transliterate Cyrillic / non-Latin in
   filenames; keep the original title in H1 + frontmatter.
 - `entities/<name>.md`, `concepts/<name>.md`, `packages/<name>.md`
-  (no `@org/` prefix), `sources/<slug>.md`.
+  (no `@org/` prefix), `sources/<slug>.md`, `contradictions/<slug>.md`,
+  `open-questions/<slug>.md`.
 
 ### `log.md` — append-only, grep-parseable