feat(deno): migrate visualization/ package.json → deno.json (Class B, standards#253 longtail) (#38)

## Summary

Class B — npm-wrapper-via-Deno. `anamnesis-visualization` is a ReScript
+ React + Vite + Jest stack. All dependencies wrap through `deno run -A
--node-modules-dir=auto npm:<tool>` per the canonical template at
`docs/migrations/npm-to-deno-template/MIGRATION.md`.

## Changes

- `visualization/deno.json` (new) — tasks for all `package.json` scripts
(`rescript:build`, `rescript:clean`, `rescript:dev`, `dev`, `build`,
`preview`, `test`, `test:watch`, `test:coverage`).
- Tasks use `deno run -A --node-modules-dir=auto npm:<tool>@<semver>`
(rescript / vite / jest); resolves rescript through its
install-lifecycle via `nodeModulesDir: "auto"`.
- `imports` map populated for all runtime + dev deps with `npm:`
specifiers.
- `visualization/package.json` deleted.

Note: jest test discovery still works via the existing `__tests__/`
convention; deno-test conversion is a per-repo follow-up.

## Test plan

- [ ] `deno task rescript:build` produces `.bs.js` output (preserves
existing `bs.js` suffix from `rescript.json`)
- [ ] `deno task build` chains rescript build + vite build
- [ ] `deno task test` runs the jest test suite

Per per-repo follow-up tracker for standards#253 (campaign closed
2026-05-31, longtail tracked in
`project_estate_npm_to_deno_2026_05_28.md`).

Refs hyperpolymath/standards#253.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

visualization/deno.json

@@ -0,0 +1,31 @@
+{
+  "$schema": "https://deno.land/x/deno/cli/schemas/config-file.v1.json",
+  "name": "@hyperpolymath/anamnesis-visualization",
+  "version": "0.1.0",
+  "license": "MPL-2.0",
+  "tasks": {
+    "rescript:build": "deno run -A --node-modules-dir=auto npm:rescript@^12.0.0",
+    "rescript:clean": "deno run -A --node-modules-dir=auto npm:rescript@^12.0.0 clean",
+    "rescript:dev": "deno run -A --node-modules-dir=auto npm:rescript@^12.0.0 build -w",
+    "dev": "deno run -A --node-modules-dir=auto npm:vite@^8.0.6",
+    "build": "deno task rescript:build && deno run -A --node-modules-dir=auto npm:vite@^8.0.6 build",
+    "preview": "deno run -A --node-modules-dir=auto npm:vite@^8.0.6 preview",
+    "test": "deno run -A --node-modules-dir=auto npm:jest@^29.0.0",
+    "test:watch": "deno run -A --node-modules-dir=auto npm:jest@^29.0.0 --watch",
+    "test:coverage": "deno run -A --node-modules-dir=auto npm:jest@^29.0.0 --coverage"
+  },
+  "imports": {
+    "rescript": "npm:rescript@^12.0.0",
+    "@rescript/core": "npm:@rescript/core@^1.0.0",
+    "@rescript/react": "npm:@rescript/react@^0.12.0",
+    "react": "npm:react@^18.2.0",
+    "react-dom": "npm:react-dom@^18.2.0",
+    "reagraph": "npm:reagraph@^4.0.0",
+    "@vitejs/plugin-react": "npm:@vitejs/plugin-react@^4.2.0",
+    "vite": "npm:vite@^8.0.6",
+    "@glennsl/rescript-jest": "npm:@glennsl/rescript-jest@^0.11.0",
+    "jest": "npm:jest@^29.0.0",
+    "jest-environment-jsdom": "npm:jest-environment-jsdom@^29.0.0"
+  },
+  "nodeModulesDir": "auto"
+}