[takashi-matsuyama]

Bump-only release PR for v0.68.0.

What ships

Everything below is already on main:

• Let a board declare what to observe and what each stage is judged by #336 A board can declare what to observe outside basou and what to look at when judging each stage (board_version: 2, record_version: 2, experimental)
• Print the steps that judge and record a board #337 basou board guide prints the steps an agent follows to judge the board and record it (experimental)
• Print a board.yaml to start a board from #338 basou board init prints a board.yaml to start a board from (experimental)
• Say in the position when the workspace keeps a progress board #339 basou orient says when the workspace keeps a progress board, and how to update it
• Refuse a board record whose words name another registered workspace #340 basou board record refuses an input whose words name another registered workspace (experimental)

Changes in this PR

• version 0.67.0 -> 0.68.0 in packages/{basou,core,cli,sdk}/package.json
• CHANGELOG.md: ## Unreleased -> ## 0.68.0 — 2026-10-09

Minor: these are additions. pnpm-lock.yaml is unchanged (workspace deps are workspace:*).

Verification

On this branch: pnpm install --frozen-lockfile, pnpm -r build, pnpm typecheck, pnpm lint, pnpm lint:lang, pnpm lint:paths, pnpm test:scripts, pnpm test:coverage all exit 0 (cli 1500, core 2735 + 1 skipped, sdk 65 tests). basou --version prints 0.68.0.