[B2] Packed @openelement/ui artifact loses Part Program registration (packageIslands SSR admission fails OE_PROGRAM_MISSING)

[SisyphusZheng]

Found by B2.3 (#1177) executor during packed-artifact website qualification (PR #1300). Blocks the strict 'website builds from public candidate artifacts alone' acceptance and is on the B2.5 (#1228) consumer-path critical path.

Defect

The packed @openelement/ui npm artifact cannot be SSR-admitted via the documented packageIslands: ['@openelement/ui'] path. deno pack erases the compile-time-only @element/@property intrinsics (applyDecs2203R lowering) when compiling ui to npm .js, so no Part Program registers and SSG fails closed with OE_PROGRAM_MISSING on <open-theme-toggle>.

Verified on BOTH the local pack:dry-run tarball AND the published registry artifact ui-0.44.0-beta.1.tgz. B2.1/B2.2 qualified ui via the in-repo dogfood fixture (workspace source), so the packed path was never exercised — this is precisely the observational-qualification gap the stage exists to close.

Acceptance

• A fresh external consumer using packed/published @openelement/ui + packageIslands gets working SSR admission (no OE_PROGRAM_MISSING) — proven by a CI-gated packed-artifact consumer test (observational principle: test the packed artifact, not the workspace source).
• If the fix touches ADR-0122 frozen paths (entry-codegen etc.), the commit message cites ADR-0151.
• The chosen fix preserves the publishability gates (pack:dry-run, package-artifacts:check).

Notes for the executor

• Root-cause first: determine whether the packing pipeline for packages/ui strips the intrinsics (build config issue) or whether the intrinsics are inherently source-only (then the packed artifact must ship a pre-compiled form or the admission contract must change — that would be an ADR-level decision; if you reach that conclusion, STOP and report rather than deciding unilaterally).
• This may interact with the B2.13 dead-v0.43-residue audit (what ui's packed artifact ships under src/**).

Part of #1155. Stage #1288. Blocks: #1177 (strict acceptance item), #1228 (B2.5 consumer matrix).

[SisyphusZheng]

Fixed by PR #1302 (squash-merged to dev as 06454c27). Root cause: @element/@Property are compile-time-only intrinsics; deno pack always transpiles tsx→js with applyDecs2203R lowering, so packed ui modules were inadmissible to the consumer-side compiled-element transform and registered no Part Program → OE_PROGRAM_MISSING. Fix (build/pack-config repair, no contract change, no frozen path): tools/lib/compiled-pack-staging.ts runs the same compileElementModule transform over ui's tsx modules in a staged minimal workspace before deno pack; other packages pack byte-identically. New CI gate consumer:packaged-ui (ci+release tiers) installs all five pack:dry-run tarballs into a hermetic scratch consumer OUTSIDE the repo and asserts exit 0 + compiled DSD for in dist output. RED→GREEN proven. Bonus discovery now guarded: the adapter's workspace auto-alias masked packed-artifact defects for ALL in-repo consumers (www, dogfood, starter) — the new gate builds outside the workspace to defeat that masking.