Reconcile Windows preview plan after implementation wave

[coneilen]

Summary

Reconcile the Windows preview source-of-truth documents with current main and live GitHub state after the completed 2026-10-01 implementation wave, without overstating packaged/native-client or parity evidence.

Changes

• advance the accepted source floor to 7d382687, map audit PR Reconcile Windows preview parity evidence #572, standalone PRs Honor Windows onboarding support directory #573-Add explicit local Windows package mode #578, and app-native stack #581 containing Start daemon connection before first-run onboarding #579/Expose Windows onboarding to UI Automation #580
• retain the strict 98-row parity result at 62 Validated / 36 Partial while updating onboarding to source-fixed/evidence-remaining
• replace the stale 13-open issue inventory with the live 7-open / 6-closed mapping and explicit evidence tiers
• encode the qualification-first next wave, independent Windows: add a quick-start build-and-run script separate from full validation #557/Windows: bootstrap Zig downloads have no timeout/retry/resume and stall on slow ziglang.org links #559/graphcoded.exe crashes silently (0xC000001D) when USERPROFILE is redirected on Windows #558/UIA live gate times out (GetFirstChild 0x80131505) after overview-lane Worktrees click #560 lanes, Windows docs: add a quick start with expected durations, known failures and how to launch #552-after-Windows: add a quick-start build-and-run script separate from full validation #557 dependency, deferred Windows: split App.zig by responsibility to enable parallel preview and parity work #564, paused providers, seven gates, and required external permissions

Test plan

RED: PowerShell current-main/source-wave assertion -> failed because the plan recorded the old source floor, omitted PRs #573-#580, and did not classify #556 as source-fixed/evidence-remaining
GREEN: PowerShell current-main/source-wave assertion -> passed with current main 7d38268, PRs #573-#580, and #556 source-fixed/evidence-remaining
REGRESSION: PowerShell ledger/delivery-map/issue-inventory assertion plus git diff --check -> passed with 98 rows, 62 Validated, 36 Partial, 36 mapped Partial surfaces, 7 open/6 closed issues, 7 gates, and no whitespace errors

Checklist

• I have read the Contributing Guidelines
• I have signed off my commits (git commit -s) per the DCO
• Tests pass locally (make test) — not run because this changes only investigation documentation; the focused documentation assertions above passed
• Code follows the existing style (make check) — not run because no Swift/Zig source changed; git diff --check passed
• I added the test/contract before the implementation and observed the intended RED failure