ci: align Node and npm versions in workflows to fix lock-file mismatch

Bumps both ci.yml and publish.yaml to node-version: 24 so the runner's
npm matches the npm 11 that produced package-lock.json locally;
regenerates the lock file in that same shape so npm ci no longer
complains about missing transitive entries (cosmiconfig, ts-node).

Also lands the lint cleanups required to keep the new test files
passing the test:lint stage of npm run test: an eslint override for
src/__tests__/** that disables a small set of rules that conflict with
vitest patterns (vi.mock between imports, non-null assertions after
expect-truthy, no-op stub methods), plus prettier formatting fixes in
ConeRendering.test.tsx.

Author: sankhesh

.eslintrc

@@ -35,5 +35,16 @@
     "import/export": 0,
     "n/no-callback-literal": 0,
     "@typescript-eslint/no-explicit-any": 0
-  }
+  },
+  "overrides": [
+    {
+      "files": ["src/__tests__/**"],
+      "rules": {
+        "import/first": 0,
+        "no-useless-return": 0,
+        "@typescript-eslint/no-non-null-assertion": 0,
+        "@typescript-eslint/no-non-null-asserted-optional-chain": 0
+      }
+    }
+  ]
 }

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v4
         with:
-          node-version: 22
+          node-version: 24
           cache: 'npm'
       - name: Install dependencies
         run: npm ci

.github/workflows/publish.yaml

@@ -17,7 +17,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 22
+          node-version: 24
       - name: Install dependencies
         run: npm ci
       - name: Build