Rename task CLI from ask to do

- Move cmd/ask to cmd/do; mage BuildDo builds binary named do
- Update askcli help text, errors, Fish completion (complete -c do, __do_*)
- Task alias cache path: XDG cache hexai/do/task-aliases-v2.json
- Refresh README and docs; go install path cmd/do@latest
- Remove accidentally tracked cmd/ask build artifact; ignore cmd/do/do and cmd/do/ask

Made-with: Cursor

3 files changed, 0 insertions, 0 deletions

diff --git a/cmd/ask/ask b/cmd/ask/ask
deleted file mode 100755
index cffc885..0000000
--- a/cmd/ask/ask
+++ /dev/null
diff --git a/cmd/ask/main.go b/cmd/do/main.go
index afab992..afab992 100644
--- a/cmd/ask/main.go
+++ b/cmd/do/main.go
diff --git a/cmd/ask/main_test.go b/cmd/do/main_test.go
index db6b436..db6b436 100644
--- a/cmd/ask/main_test.go
+++ b/cmd/do/main_test.go