No supported way to deregister one project; removal requires hand-editing global.db

[BleedingDev]

Environment

tracedecay 0.0.74, macOS 26.7 arm64. Project stored in profile-sharded mode, no marker directory inside the repo root.

Problem

There is no supported way to remove one registered project.

• tracedecay projects is read-only: list, search, context.
• tracedecay wipe acts on cwd, parents, and children. From the project root, tracedecay list reports "No tracedecay projects found in current folder, parents, or children", so wipe is a no-op, even though tracedecay projects list shows the project as registered. The two commands disagree about whether it exists.
• tracedecay wipe --all removes everything.
• tracedecay migrate registry-gc only removes rows whose roots no longer exist. This root existed, so it was skipped.

Workaround

Stop the watchdog, stop the daemon, then delete by hand from global.db:

DELETE FROM project_aliases WHERE project_id IN (...);
DELETE FROM store_instances WHERE project_id IN (...);
DELETE FROM code_projects   WHERE project_id IN (...);

Then rm -rf the matching directory under projects/, and restart both services. This worked, but it depends on knowing the schema, stopping the daemon so the DB is not owned, and getting the order right across three tables. A schema change breaks anyone following it.

Ask

tracedecay projects forget <project-id|path> [--keep-store] [--dry-run]

Removing the rows, deleting the store unless told otherwise, coordinating with the running daemon instead of requiring a manual stop.

Separately, tracedecay list and tracedecay projects list disagreeing for profile-sharded projects is confusing on its own, and is probably why wipe is useless here.