fix(pricing): preserve incomplete estimated usage quotes

Interrupted provider streams can reconstruct positive usage without terminal
reported counts. The shared quote owner forwarded that provenance but ignored
it when certifying complete cost facts, allowing recovered usage to make a
fully covered ledger.

Use the existing incomplete-usage result while retaining fixed-point amounts
and occurrence-time valuations. Reported usage, including rate-card estimates,
keeps its completeness. Existing quote fields, reasons and ledger versions stay
unchanged; no provider-visible request, permission or budget default changes.

Cover shared event/config adapters, persisted ledger coverage and real boot SSE
recovery with an actual file read. Add a Windows fourteen-event inventory in the
existing job. This is a monetary-fact prerequisite of the full concurrency plan,
not shared root-money admission or hard reservation.

Verification: fourteen focused events and the real boot race pass; compiled
preceding pricing fails twelve regression events with two controls passing.
The prior reader accepts the incomplete quote fixture. Root vet, full lint and
make check pass with the baseline unchanged. Eight Windows/Linux amd64 owner
builds compile; full root inventory and complete owner race continue separately.

Refs #14025
Refs #14133

.github/workflows/ci.yml

@@ -391,6 +391,36 @@ jobs:
           if-no-files-found: ignore
           retention-days: 7
 
+      - name: test (Windows estimated usage quotes)
+        if: env.RUN_STEPS == 'true' && runner.os == 'Windows' && github.event_name == 'pull_request'
+        timeout-minutes: 5
+        shell: bash
+        run: |
+          set -o pipefail
+          go test -count=1 -timeout=3m -json -run '^Test(EstimatedUsage|EffectEstimatedUsage)' ./internal/contract/pricing ./internal/contract/event ./internal/contract/config ./internal/assembly/boot | tee "$RUNNER_TEMP/estimated-quote.jsonl"
+          jq -se '
+            [.[] | select(.Test == null and .Action == "pass") | .Package] as $packages |
+            [.[] | select(.Test != null and .Action == "pass") | .Test] as $tests |
+            all(.[]; .Action != "skip" and .Action != "fail") and
+            (["reasonix/internal/contract/pricing", "reasonix/internal/contract/event", "reasonix/internal/contract/config", "reasonix/internal/assembly/boot"] - $packages | length) == 0 and
+            (["TestEstimatedUsageQuotePreservesAmountsWithoutCompleteFacts", "TestEstimatedUsageQuotePreservesAmountsWithoutCompleteFacts/CNY",
+              "TestEstimatedUsageQuotePreservesAmountsWithoutCompleteFacts/USD", "TestEstimatedUsageLedgerRetainsPartialCoverage",
+              "TestEstimatedUsageLedgerRetainsPartialCoverage/separate_keys", "TestEstimatedUsageLedgerRetainsPartialCoverage/same_key",
+              "TestEstimatedUsageSavedQuoteReader", "TestEstimatedUsageQuoteSinkCoversTurnAndGuardian",
+              "TestEstimatedUsageQuoteSinkCoversTurnAndGuardian/turn", "TestEstimatedUsageQuoteSinkCoversTurnAndGuardian/guardian",
+              "TestEstimatedUsageConfiguredQuote", "TestEffectEstimatedUsageQuoteAfterStreamRecovery",
+              "TestEffectEstimatedUsageQuoteAfterStreamRecovery/reported_control", "TestEffectEstimatedUsageQuoteAfterStreamRecovery/interrupted"] - $tests | length) == 0
+          ' "$RUNNER_TEMP/estimated-quote.jsonl"
+
+      - name: upload Windows estimated quote inventory
+        if: always() && env.RUN_STEPS == 'true' && runner.os == 'Windows' && github.event_name == 'pull_request'
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
+        with:
+          name: estimated-quote-windows-${{ github.run_attempt }}
+          path: ${{ runner.temp }}/estimated-quote.jsonl
+          if-no-files-found: ignore
+          retention-days: 7
+
       # The general Windows PR smoke list intentionally omits internal/contract/tool.
       # Keep the session-temp portability contract covered without widening the
       # leg to every tool test: two real PowerShell launches must share the