8cda541f2c
ctask new gains --project, which:
- records type=project on the workspace
- defaults the category to "projects"
- applies general + project seed overlays
- uses CTASK_PROJECT_ROOT when set, with no doubled "projects/"
path unless the user explicitly passes -c
- exports CTASK_TYPE=project into the child session
EnvVars now takes a taskType arg and exports CTASK_TYPE. Empty
type defaults to "task" for safety. resume/open also pass
EffectiveType so the env var is correct on resume of a v0.2
workspace.
Git init for project mode is wired in the next commit.