Snapshot the code-bearing fields of routes (verb/path/handler), templates
(name/content/test_object), and db libraries (name/library) on every
content-changing save, so nothing edited is ever lost. Recorded in a new
`versions` table via recordVersion() hooked into the create/update functions
in db.js (the single write choke point), deduped against the latest snapshot
so no-op saves, error-flag-only route writes, and server-restart WS
re-bootstraps don't pile up. The live row stays current; old snapshots are the
undo trail. Read-only, no revert UI yet.
- migrations/004_add_versions.sql: versions table + indexes
- db.js: recordVersion/getVersions/getVersion + create/update hooks
- plumbing.js: /versions/:id and per-entity .../versions list endpoints
- bliss: `versions <type> <sid> <id>` and `version <id>` reads;
`update-settings` (edit route_prefix/head_injection, preserving the
untouched field); `use <url>` sticky target persisted to ~/.bliss/target
so BLISS_URL needn't be re-exported each call
- client.js: target-file precedence (BLISS_URL > ~/.bliss/target > localhost)
- SKILL.md: document the above
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
updateRoute/updateDb/updateStruct/updateTemplate/updateScaffoldPage
were the same UPDATE-by-id builder with a different table and field
list. Extract a single update(table, fields, obj) and express each as
a one-liner. (updateScaffoldPage's two stray debug console.logs went
away with the rewrite; it keeps its changes>0 return.)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
