fix(cli): create the Maple home before first-run startup touches its siblings

[JeremyFunk]

Reported from a fresh install: the first maple start on a machine with no ~/.maple dies with a bare filesystem error.

ERROR (#3): @maple/cli/ServerError: ENOENT: no such file or directory,
mkdir '/Users/…/.maple/data.maple-maintenance-lock'

Why it happens

start reconciles checkpoint recovery before it creates any directory — deliberately, so a restore or reset transaction is settled before reset/compatibility/dirty-store logic runs. That reconciliation takes the maintenance lock, and the lock — like the PID file, the --background log, the restore/reset transactions and the migration journal — is a sibling of the data dir. On first run its parent (~/.maple) does not exist, so the mkdir fails.

acquireMaintenance has created that parent since v0.0.15 (9b5ea73), so the crash only reproduces on older builds — the report is from a Homebrew install still on 0.0.13. There was no test holding the invariant, and it was an emergent property of one helper rather than a stated precondition of startup.

Change

• start creates the data dir's parent as its first filesystem step. The data dir itself is still created where it was, after recovery reconciliation, so restore/reset reconciliation keeps seeing the tree exactly as it left it.
• Two regression tests, both against a data dir whose parent is absent: maintenance-lock acquisition, and recovery reconciliation. Removing the parent creation from acquireMaintenance makes both fail with the reported ENOENT.

Verification

• bun run test in apps/cli — 434 pass, 0 fail.
• bun typecheck in apps/cli — clean.
• HOME=<empty dir> maple start from source: creates ~/.maple/data and reaches chDB open (which then stops on libchdb not found, expected in a source checkout — release bundles ship it). Before the fix the same run on 0.0.13's code path stops at the lock mkdir.

Note for the reporter: the Homebrew tap is still serving 0.0.13, several tags behind. brew upgrade will only pick this up once the tap formula is bumped.

🤖 Generated with Claude Code

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