chore: advance Lotus Next transport pointer (#165)

[bigduu]

Summary

• Advance the single lotus-next gitlink from b0bc55f63d786e01c902984835218f7789e3b0cb to current Lotus Next main@125b4cf6966f9f67412f9dc8c1eb64786d87ec75.
• Bring fresh Zenith checkouts onto the accepted truthful HTTP input and request-body replayability contract from Lotus Next chore: bump bamboo stream liveness pointer (#618) #24 / PR chore: bump bamboo workflow activation pointer (#579) #25.
• Leave every other submodule pointer and every root file unchanged.

Closes #165

Parent migration tracker: bigduu/lotus-next#11

Submodule Updates

Submodule	Old SHA	New SHA	Rationale
lotus-next	b0bc55f63d786e01c902984835218f7789e3b0cb	125b4cf6966f9f67412f9dc8c1eb64786d87ec75	Advance one root gitlink over the independently reviewed and merged Lotus Next #24 slice. The upstream diff truthfully narrows HTTP inputs to string | URL, makes retry classification body-replayability aware, snapshots caller input once across supported engines, fails invalid/Unicode-confusable methods closed, and keeps one-shot streams exact-once.

Verification

• Fresh isolated worktree started at exact Zenith origin/main@2eda7d669b8e0222aefbc0c55f1e4f62f7831e5a.
• git diff --cached --raw before commit showed exactly one mode-160000 update: lotus-next b0bc55f -> 125b4cf.
• git diff --check origin/main...HEAD passed.
• The new gitlink equals live bigduu/lotus-next main@125b4cf6966f9f67412f9dc8c1eb64786d87ec75.
• Lotus Next PR chore: bump bamboo workflow activation pointer (#579) #25 exact head 430d717e5cb025208c6f120db4f8e1c042971d4d received an independent APPROVE after Node 22/24 full verification (17 files / 366 tests), and was squash-merged as 125b4cf6966f9f67412f9dc8c1eb64786d87ec75; Issue chore: bump bamboo stream liveness pointer (#618) #24 is closed and Roadmap Done.
• Zenith Submodule Guard, applicable exact-head checks, and an independent exact-head root review must pass before merge.

Test Plan

• git diff --check origin/main...HEAD
• git diff --raw origin/main...HEAD
• git diff --name-only origin/main...HEAD
• git ls-tree HEAD lotus-next
• Verify every non-target origin/main gitlink remains byte-for-byte unchanged.

Screenshots

Not applicable; root repository gitlink-only change.