docs(plan): wave 1 landings; D-62 (Windows as P11c) and D-63 (tokens in a file, no keyring); units U0e and P11c

8.0.1 and the Status lines record U0d, S4.5, P13 steps 4-5 and P11a
step 0 as landed. Two owner decisions from today's questions: D-62,
the first bundled app ships for macOS and Linux and the native Windows
port is its own unit P11c (step 0 found it is a port: the host, the
MCP transport, the store's locking and permissions, the data root);
D-63, agents' tokens live in a 0600 file under the 0700 data root on
every OS and no OS keyring is used (the plan had never recorded the
owner's view, so step 0 built two more stores). Unit U0e removes the
three keyring stores and the knob; 3.3's keyring sentence and step 0's
are struck. 8.0.3 confirms the eight bookspec example ids P13 took.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp

plan/HANDOFF.md

@@ -18,7 +18,7 @@ You are the engineering manager (EM) of a team implementing the remaining work o
 
 - `main` is `bfd453b6`. Landed since the hand-off: U0a, U0b, U0c, P7, P9a, P13 steps 1-3, P4b S4.1, S4.2, S4.3 (2026-10-26 to 2026-10-27), then S4.4, S5, S6, S7 and P6 (2026-10-29, merged from the paused branches by the planning session). Live on the owner's books: P0 to P3, Projects, P4b S1 (`document_standing`); everything behind `documents_v2` waits for the owner's upgrade (Q-5).
 - Nothing is built and unmerged. Branch `ci-fixes` (`76285434`, a fuzz target's renamed path and a regression test) is the one branch left to merge.
-- Not started: S4.5 (next), U0d (after S4.5), P4, P5, P8, P10, P11a (starts now: D-56; step 0 first), P11b, P12, P13 steps 4-6.
+- Landed 2026-10-29 by wave 1 of this session's subagents: U0d, S4.5, P13 steps 4-5, P11a step 0 (the portable CI job; its keyring stores are being removed). Building: P4, U0e. Not started: P5, P8, P10, P11a steps 1-7, P11b, P11c, P12, P13 step 6 (the owner's call).
 - The plan's section 8 was rewritten on 2026-10-26 for this hand-off and revised on 2026-10-28 (section 0, "What changed on 2026-10-28"; `plan/2026-10-28_DRIFT_REPORT.md`). Sections 1 to 7 are the older design and carry strike-throughs (`~~text~~ → D-n`) and "As built" notes where the build or a decision departed; where section 8 and an earlier section disagree, section 8 is right.
 - Mutation testing is paused until unit P12 (decision D-33). Workers never run `cargo mutants`; each unit writes a "For P12" paragraph in `docs/testing.md` instead (recipe R-G).
 - The owner's live books are never touched by anyone on this team. The only books a worker uses are test fixtures and throwaway books made by `wanderbooks setup` in a scratch root. A unit's new writes are refused on the owner's books until the owner's format upgrade; merging never waits for that.