docs(ops): today-mode 2026-08-12 — mid-flight recovery + carryover

[FabioLeitao]

Summary

• Add OPERATOR_TODAY_MODE_2026-08-12 (EN + pt-BR): inventory of mid-flight / almost-ready work after the 2026-08-10 gap.
• Refresh CARRYOVER with observability plan drift ([chore][docs] Atualizar status do PLAN_LAB_OP_OBSERVABILITY_STACK.md — formatos de ingestão nativos validados (2026-08-12) #1542), product OTel gaps ([P3][observability] otel_setup.py has no LoggerProvider — app logs never reach Loki, no log-based proof of boar_fast_filter license-enforced runs #1529/OTel (traces/metrics/logs) só instrumenta --web/--demo — oneshot CLI, exports, version/license ficam 100% cegos #1535), packaging/Windows CI ([docs][packaging] PLAN_NATIVE_PACKAGES.md não linka MSI/winget (#1467), Homebrew (#1425), Windows CI blocker (#1427), doc-drift do ADR-0085 (#1478) #1541/[P1][1.8.x][ci][windows] CI nunca testa Windows — 138 .ps1, classifier OS Independent, zero job windows-latest (bloqueia MSI/winget) #1427), and current Dependabot open PRs.
• Index the new day in today-mode README (EN + pt-BR).

Test plan

• ./scripts/check-all.sh (exit 0)
• Commit signed (-S)
• Skim today-mode sequencing A→B→C; confirm [chore][docs] Atualizar status do PLAN_LAB_OP_OBSERVABILITY_STACK.md — formatos de ingestão nativos validados (2026-08-12) #1542 is the preferred first thin slice