Promote an auto-captured idea from the cross-session board into the curated per-repo
profile at <workspaceRoot>/.correx/project.toml as a `conventions` entry. New
IdeaPromotedEvent tombstones the idea off the board (IdeaReader treats it like a
discard) and records the promotion as a fact; the server PromoteIdea handler loads
the profile, appends the idea text (deduped via ProjectProfile.withConvention), and
writes it back. Adds ProjectProfileWriter (escape-aware TOML serialize/write) and
makes SimpleToml's reader unescape \\ and \" symmetrically with the writers
(fixes a pre-existing read/write asymmetry surfaced by the round-trip test).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
kami
f107ff554c