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/setup-wiki/README.md

@@ -25,7 +25,7 @@ Canonical layout reference:
 | Mode | Trigger | Action |
 |---|---|---|
 | **greenfield** | No `.wiki/` exists | Create the canonical layout from scratch. |
-| **noop** | `.wiki/` already canon (all five canon files + four content dirs) | Report and exit — no writes. |
+| **noop** | `.wiki/` already canon (all five canon files + six content dirs) | Report and exit — no writes. |
 | **migrate** | `.wiki/` exists with non-canon files (`SUMMARY.md`, `WORKFLOW.md`, `source/`) or missing canon files | Move legacy files (e.g. `source/*.md` → `concepts/*.md` via `git mv`), create missing canon files, drop a timestamped `.backup-*/` next to it. |
 
 Migration **does not auto-rewrite** existing concept content — it only moves
@@ -45,10 +45,12 @@ job.
 ├── entities/          ← entity pages (people, services, modules)
 ├── concepts/          ← design decisions, recurring ideas
 ├── packages/          ← code packages
-└── sources/           ← one summary per ingested source
+├── sources/           ← one summary per ingested source
+├── contradictions/    ← surfaced tensions worth tracking long-term
+└── open-questions/    ← unresolved questions raised during ingest/query
 ```
 
-The four content directories each get a `.gitkeep` so git tracks them.
+The six content directories each get a `.gitkeep` so git tracks them.
 
 ## Hard rules