v0.9.6 Documentation audited against the code

v0.9.6

• Documentation audited against the code. Every documented surface was diffed
  mechanically against its source of truth — HTTP routes against llmwiki/web.py,
  MCP tools against the operations.py registry, CLI commands against the click
  tree, LLMBASE_* variables against their reads — in all three directions:
  documented-but-absent, present-but-undocumented, and diverging signature. Ten
  misalignments were found and fixed.
• Text reads no longer depend on the platform locale. Path.read_text() without
  encoding= resolves its codec from the locale: UTF-8 on Linux, cp1252 on Windows.
  The package writes UTF-8 everywhere — all 38 write_text() calls pass it — but read
  it back without specifying one at 31 sites, so kb_stats, llmbase stats and
  GET /api/stats all failed on Windows against 11 of 226 wiki articles. The bug dated
  to April and survived because CI runs on ubuntu-latest only.