chore: pin Lotus Next notification CAS service

[bigduu]

Summary

Closes #189. Advance only the lotus-next gitlink from eb0afadd71e6d01c874e22a07e2e3e72face9790 to the actual merged main commit d644fd87b20c39c7145e1edf220356ed7a4ea9d3.

This one-commit range adds bigduu/lotus-next#57 / PR bigduu/lotus-next#63: the dormant notification CAS service and its single-attempt write path. The earlier FileReader test stabilization and sidebar date folding are already pinned by #188 and remain unchanged. The Jiandu page in bigduu/lotus-next#64 is not part of this pointer update.

No other gitlink, workflow, documentation, release setting, or source file changes. Nova adoption from #186 is preserved.

Test Plan

• Source PR chore: bump bamboo pointer for #722 #63: independent review PASS at exact head 5759aba2edd264a88a3aee641af4f4f55a8ce10d.
• Source Node 22, Node 24, Real Bamboo / Node 22: all passed (run 33946959581).
• Source local verification: 901 tests plus type/lint/architecture/build/package checks passed.
• Source main's actual squash commit d644fd87... verified after merge; no PR head or temporary merge commit is pinned.
• git diff --check passed; complete root diff is one mode-160000 entry.
• git ls-tree HEAD lotus-next exactly equals d644fd87b20c39c7145e1edf220356ed7a4ea9d3.
• Both Submodule Guard jobs passed for ca33ca7.
• Independent exact-head root review: PASS; remaining eight gitlinks preserved.
• Final live head/base/reviews/mergeability checks before guarded merge.

Root candidate ca33ca7196eebc2c8b6710092b86a2244c8f83ea, based on fresh main 267a84d2ed0d0329f3dac3a83fbaad9ef2b8b45f.

Submodule Updates

Submodule	Old SHA	New SHA	Reason
lotus-next	eb0afadd71e6d01c874e22a07e2e3e72face9790	d644fd87b20c39c7145e1edf220356ed7a4ea9d3	Pin accepted #57/#63 notification CAS contract service and explicit single-attempt mutation path.

Screenshots

Not applicable: gitlink-only delivery, no new UI change in this root PR.

[bigduu]

Independent exact-head review: PASS.

• Base 267a84d2ed0d0329f3dac3a83fbaad9ef2b8b45f; head ca33ca7196eebc2c8b6710092b86a2244c8f83ea.
• Complete diff is one mode-160000 lotus-next entry: eb0afadd71e6d01c874e22a07e2e3e72face9790 → d644fd87b20c39c7145e1edf220356ed7a4ea9d3.
• Live source PR chore: bump bamboo pointer for #722 #63 is merged to main at exactly d644fd87...; source main matches it. chore: pin Lotus Next sidebar date folding #188 already contains the earlier sidebar/test work.
• All other eight gitlinks are identical between base/head; Nova remains 8f029d22dbc9ab317a68560788d1e6360b71120e.
• Diff-check passed; isolated worktree is clean. No findings. No source tests were redundantly rerun for this one-gitlink change.

Both Submodule Guard jobs have passed for this exact head. The PR body manually includes the complete Submodule Updates table; #116's narrower notes-watchlist is not mistaken for sufficient documentation validation. Final remote head/base, reviews and mergeability checks remain required immediately before the guarded merge.