fix(spec): keep object enable.trash/mru dead, not experimental (CI: author-lint)

The author-side liveness lint (lintLivenessProperties, #1966) auto-warns on
every `experimental` prop. enable.trash / enable.mru default to `true`, and
the lint cannot distinguish an authored `true` from the schema default — so
tagging them experimental warned on the default value of every object,
tripping the "does NOT warn on a default-on flag left alone (enable.trash)"
contract test in Test Core.

Revert those two to `dead` (their audit classification) with a ledger note
explaining why; drop the [EXPERIMENTAL] marker from their spec .describe().
Their #1893 disposition (prune-or-build) stays tracked in the sub-issue.
All other #1893 experimental markers are on ungoverned types the lint never
loads, so they are unaffected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LddW4NaQBdf5FTEnBPpnUJ

Author: claude

content/docs/references/data/object.mdx

@@ -164,8 +164,8 @@ const result = ApiMethod.parse(data);
 | **files** | `boolean` | ✅ | Generic record Attachments panel (sys_attachment). Opt-in: true surfaces the panel and permits attachments targeting this object; otherwise creation is rejected. Field.file/Field.image are independent |
 | **feeds** | `boolean` | ✅ | Record comments/collaboration feed. Default on; explicit false hides the feed UI and rejects new comments for this object |
 | **activities** | `boolean` | ✅ | Record activity timeline (sys_activity mirror of CRUD). Default on; explicit false stops mirroring and hides the timeline |
-| **trash** | `boolean` | ✅ | Enable soft-delete with restore capability. [EXPERIMENTAL — not enforced] No runtime consumer reads this flag yet; a Recycle Bin / restore surface is planned but not wired (liveness audit #1878/#1893). |
-| **mru** | `boolean` | ✅ | Track Most Recently Used (MRU) list for users. [EXPERIMENTAL — not enforced] No runtime consumer reads this flag yet (liveness audit #1878/#1893). |
+| **trash** | `boolean` | ✅ | Enable soft-delete with restore capability |
+| **mru** | `boolean` | ✅ | Track Most Recently Used (MRU) list for users |
 | **clone** | `boolean` | ✅ | Allow record deep cloning |
 
 

packages/spec/liveness/object.json

@@ -178,14 +178,14 @@
           "evidence": "packages/plugins/plugin-audit/src/audit-writers.ts (writeAudit: explicit activities:false skips the sys_activity timeline mirror; audit row unaffected); objectui RecordDetailView skips the timeline merge on explicit false. Opt-out — spec default true; the per-object lever for activity-row growth, ADR-0057 (#2707)."
         },
         "trash": {
-          "status": "experimental",
+          "status": "dead",
           "evidence": "no behavior-changing reader",
-          "note": "Declared, intentionally not enforced yet: no Recycle Bin / restore surface consumes enable.trash. Marked experimental (not dead) per ADR-0049 — the flag names a planned capability; spec .describe() carries the [EXPERIMENTAL — not enforced] marker (#1878/#1893)."
+          "note": "Kept `dead` (not experimental): enable.trash defaults to true, and the author-side liveness lint auto-warns on experimental props — for a default-true boolean it cannot distinguish an authored value from the schema default, so tagging it experimental would warn on every object (noise). Disposition for #1893 is prune-or-build, tracked in the sub-issue; no authorWarn so it stays silent."
         },
         "mru": {
-          "status": "experimental",
+          "status": "dead",
           "evidence": "no behavior-changing reader",
-          "note": "Declared, intentionally not enforced yet: no Most-Recently-Used tracker consumes enable.mru. Marked experimental per ADR-0049; spec .describe() carries the marker (#1878/#1893)."
+          "note": "Kept `dead` (not experimental) for the same default-true-boolean reason as enable.trash; disposition tracked in #1893. No authorWarn so it stays silent."
         },
         "clone": {
           "status": "live",

packages/spec/src/data/object.zod.ts

@@ -107,10 +107,10 @@ export const ObjectCapabilities = z.object({
   activities: z.boolean().default(true).describe('Record activity timeline (sys_activity mirror of CRUD). Default on; explicit false stops mirroring and hides the timeline'),
 
   /** Enable Recycle Bin / Soft Delete */
-  trash: z.boolean().default(true).describe('Enable soft-delete with restore capability. [EXPERIMENTAL — not enforced] No runtime consumer reads this flag yet; a Recycle Bin / restore surface is planned but not wired (liveness audit #1878/#1893).'),
+  trash: z.boolean().default(true).describe('Enable soft-delete with restore capability'),
 
   /** Enable "Recently Viewed" tracking */
-  mru: z.boolean().default(true).describe('Track Most Recently Used (MRU) list for users. [EXPERIMENTAL — not enforced] No runtime consumer reads this flag yet (liveness audit #1878/#1893).'),
+  mru: z.boolean().default(true).describe('Track Most Recently Used (MRU) list for users'),
 
   /** Allow cloning records */
   clone: z.boolean().default(true).describe('Allow record deep cloning'),