docs: fix unrendered bold, stale names, and stale values

[MasamiYui]

Summary

Point fixes for documentation that either renders wrong on GitHub or npm, or contradicts the code it describes. #5624 lists every item with the source line it was checked against.

• Unrendered bold. A closing ** right after a full-width ： and before a letter is not right-flanking under CommonMark, so the asterisks print literally. The colon moves outside the emphasis in three places: the CLI Chinese README, the agent-graph scheduling draft, and the Chinese Nightly notice that scripts/release-cli-package.mjs prepends to the npm README.
• Stale names. ARCHITECTURE.zh-CN.md: Runtime Runner → RuntimeKernel (matching the English edition and the code), [ENGLISH] → [English]. docs/agent-swarm.md: AiSdkTurn, not AiSdkBackend, appends the swarm prompt. The README native/ entry now names the Windows task launcher.
• Stale values.
  • DESIGN.md: drop the info-light/info-dark frontmatter the document itself says does not exist, set surface-overlay-dark to the derived 0.223, and repair one unparseable sentence.
  • packages/ui/README.md: five export surfaces, not four.
  • docs/cli-npm-release*.md: drop a stray version=0.1.0.
  • ACP README: state the 175 → 176 epoch bump as past (feat(cli): isolate ACP MCP per Session (PR5 γ) #5386).
  • Eval troubleshooting: correct the cause of machine path ... is unavailable and refresh stale line references.
  • website/README.md: mention staging.profile: ~.

Fixes #5624

Left out to avoid overlapping open work: the ARCHITECTURE.md projection status (#5292), and the same bold problem in docs/architecture/windows-sandbox-rfc-v1.zh-CN.md (#5342).

Verification

• GitHub's renderer (gh api -X POST /markdown -f mode=gfm): > **Beta：**CLI renders literal **; > **Beta**：CLI renders <strong>Beta</strong>. The repository's marked gives the same result for all five changed emphasis spans.
• A whole-document marked render of every non-archive Markdown file finds no remaining literal **, except windows-sandbox-rfc-v1.zh-CN.md, which is left for docs(architecture): reconcile Windows sandbox RFC bilingual pair #5342.
• Relative-link and heading-anchor checks across all tracked Markdown: 0 broken.
• npx biome format ., npx biome lint ., npm run check:asf-headers, and node --check scripts/release-cli-package.mjs all pass.
• Each factual edit was re-checked against the cited source line at 0cb4fc32b.
• Not run: build, typecheck, and test suites. The only non-Markdown change is one string literal in the release script, and no test asserts on it.

AI use

Select exactly one:

• No generative tool made a substantive contribution
• Generative tooling made a substantive contribution

Tool(s) and scope: Claude Code audited the docs against the code, verified each item, and drafted the edits, the issue, and this description. The commit carries a Generated-by: Claude Code trailer.

Checklist

• Tests cover the change and fail without it (not applicable: documentation and one notice string)
• Lint, format, typecheck and the affected suites pass locally (lint and format pass; typecheck and suites not run, no TypeScript changed)

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No

🤖 Generated with Claude Code