* fix(#2613): preserve STATE.md frontmatter on write path (option 2)
`readModifyWriteStateMd` strips frontmatter before invoking the modifier,
so `syncStateFrontmatter` received body-only content and `existingFm`
was always `{}`. The preservation branch never fired, and every mutation
re-derived `status` (to `'unknown'` when body had no `Status:` line) and
`progress.*` (to 0/0 when the shipped milestone's phase directories were
archived), silently overwriting authoritative frontmatter values.
Option 2 — write-side analogue of #2495 READ fix: `buildStateFrontmatter`
reads the current STATE.md frontmatter from disk as a preservation
backstop. Status preserved when derived is `'unknown'` and existing is
non-unknown. Progress preserved when disk scan returns all zeros AND
existing has non-zero counts. Legitimate body-driven status changes and
non-zero disk counts still win.
Milestone/milestone_name already preserved via `getMilestoneInfo`'s
#2495 fix — regression test added to lock that in.
Adds 5 regression tests covering status preservation, progress
preservation, milestone preservation, legitimate status updates, and
disk-scan-wins-when-non-zero.
Closes#2613
* fix(sdk): double-cast WorkflowConfig to Record in loadGateConfig
TypeScript error on main (introduced in #2611) blocks the install-smoke
CI job: `WorkflowConfig` has no string index signature, so the direct
cast to `Record<string, unknown>` fails type-check. The SDK build fails,
`installSdkIfNeeded()` cannot install `gsd-sdk` from source, and the
smoke job reports a false-positive installer regression.
src/query/check-decision-coverage.ts(236,16): error TS2352:
Conversion of type 'WorkflowConfig' to type 'Record<string, unknown>'
may be a mistake because neither type sufficiently overlaps with the
other.
Apply the double-cast via `unknown` as the compiler suggests. Behavior
is unchanged — this was already a cast.
a56707a07b