fix: unify workspace-scoped Lody session deep links

[lodystage]

Related issue

Internal same-repository change; no linked issue.

Summary

• Unify all channels on lody session URIs with workspace IDs across prompts, mentions, paste, navigation, MCP and Markdown export; preserve exact children and authorization boundaries.
• Preserve existing OS defaults; forward legacy common cloud routes only to the Stable private alias, with visible redacted failures. Keep chat/new local. Windows first launch fills an absent handler.
• Isolate invalid batch-status items; paste compound links as child mentions; tolerate partial export items; normalize punctuation/emphasis and skip unrelated URLs.
• Wait for child metadata, cancel abandoned navigation and expire pending restoration after 15 seconds. Centralize runtime/packaging schemes.
• Update bilingual draft Specs and owning note: contract.

Diff baseline

The shallow checkout has a stale local main without a merge base. The branch includes main at 7700f42; review uses the verified origin/main merge base.

Test plan

• Passed 97 focused regression tests and all 48 repository script tests.
• Passed workspace typecheck, lint, formatting, localization and boundary checks.
• Full check encountered sandbox subprocess restrictions. Full CI rerun stopped at React act with inherited NODE_ENV=production; that individual case passed with NODE_ENV=test. Full-suite completion is not claimed.
• Docs check retains six pre-existing missing Kimi/Pi submodule links; no new errors.
• Clean Windows installation, installer registration before first launch, real packaged OS dispatch/default selection and hosted callback deployment remain unverified. Injected OS tests do not establish release acceptance.

Context handoff

Internal implementation; regular PR explicitly requested. Specs remain draft. No claimed human approval, production rollout or captured authoring transcripts.

[github-actions]

Desktop PR regression failed on commit c51bf60cb22f5ab88c096fd79b69038510119050.

• Workflow run: https://github.com/LodyAI/Lody/actions/runs/36671930410
• Failed scenarios indexed: 0
• Recording: 1/1

Recordings not attached

• Run evidence: failure-index.json is missing

The Actions artifact retains the complete trace, screenshots, logs, and runtime evidence.