docs: add task 2 report

.superpowers/sdd/task-2-report.md

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+# Task 2 Report
+
+## Files
+
+- `web/apps/console/src/presentation/conclusion/conclusion-model.ts`
+- `web/apps/console/src/presentation/conclusion/conclusion-model.test.ts`
+- `web/apps/console/src/presentation/conclusion/ConclusionScene.tsx`
+- `web/apps/console/src/presentation/conclusion/ConclusionScene.test.tsx`
+- `web/apps/console/src/presentation/presentation.css`
+- `.superpowers/sdd/task-2-report.md`
+
+## TDD Evidence
+
+### RED
+
+Command:
+
+```text
+pnpm --dir web --filter @lda/console test -- src/presentation/conclusion/conclusion-model.test.ts
+```
+
+Result: failed before tests ran because `./conclusion-model.js` did not exist.
+
+Command:
+
+```text
+pnpm --dir web --filter @lda/console test -- src/presentation/conclusion/ConclusionScene.test.tsx
+```
+
+Result: failed before tests ran because `./ConclusionScene.js` did not exist.
+
+### GREEN
+
+The model test passed with 3 tests. The component test passed with 7 tests. The combined run passed with 2 files and 10 tests.
+
+## Verification
+
+- `pnpm --dir web --filter @lda/console typecheck` passed.
+- `pnpm --dir web --filter @lda/console test -- src/presentation/conclusion/conclusion-model.test.ts src/presentation/conclusion/ConclusionScene.test.tsx` passed: 10 tests.
+- `pnpm --dir web --filter @lda/console build` passed; Vite emitted the existing chunk-size warning.
+- `git diff --check` passed.
+
+## Deviations
+
+- The report file is included because the task explicitly requires it; no other files outside the Task 2 surface were changed.
+- The scene is implemented as the requested standalone presentation component. Existing scene routing/integration files were not modified because they were outside the Task 2 file list.
+
+## Concerns
+
+- `ConclusionScene` is not wired into `SceneBody` or route selection by this task, so a caller must add that integration separately.
+- The production build retains the pre-existing Vite warning about a JavaScript chunk larger than 500 kB.
+
+## Self-review
+
+- Confirmed the four stable nodes and exact non-claims.
+- Confirmed five unique future-work IDs and five distinct Lucide icon mappings, each with visible label and example text.
+- Confirmed all beats retain the labelled semantic boundary diagram.
+- Confirmed the limits beat marks non-claims, and the conclusion beat marks future work as `receded`.
+- Confirmed the diagram uses semantic HTML and CSS connectors rather than React Flow, with responsive wrapping and a single cyan substrate emphasis.
+- Confirmed no factual production, scheduler, or broad benchmark claim was added.