v0.3.0

0.3.0

Adapted to the projectID-era opencode2 worktree API (20260915 nightlies and
later; verified against 0.0.0-next-20260917). The API now requires the
project id on every worktree call, dropped the per-request strategy field,
and dropped the location query. spawn_workspace and list_worktrees
derive the id from the plugin's own location context, pass the source as
from, and still send strategy for 2.0.2-era binaries, where it is what
selects the git fallback's mechanism.

Behavior notes:

• On projectID-era binaries the git fallback cannot be requested through
  the create API: a non-CoW source fails with the cow refusal, and the
  refusal is final. The option still works on 2.0.2-era builds. Documented
  in the README.
• Create no longer assembles <parent>/<name> verbatim when the path is
  taken; the server suffixes name-2 through name-10. Named
  spawn_workspace calls are unaffected: the tool refuses anything it
  cannot attach to before create runs.

Also in this release:

• Issue #14 (Desktop hardcodes strategy: "git") resolved upstream by the
  same refactor and closed.
• The e2e harness speaks the projectID-era API end to end: 112 checks, 0
  failed against a real 0.0.0-next-20260917 server
  (docs/e2e/run-2026-09-17.md). Unit suite: 307 tests, coverage gate at
  100% lines on all 21 shipped files.