chore(knip): add config and remove dead code/deps

- knip.json: scope to src, ignore submodule/worktrees, mark
  generated abi.ts as unresolved-allowed, honor @public JSDoc tag
- drop 14 orphaned files (12 ui components, model/Bank, model/Pix)
- drop 18 unused deps (urql, tanstack, wagmi/{core,vue}, graphql,
  permissionless, graphql-codegen suite, axe-core, lighthouse,
  vue/test-utils)
- drop 4 unused exports and de-export 9 internal-only types
- mark NetworksTestnet as @public (in-flight testnet support)

package.json

@@ -16,19 +16,10 @@
   },
   "dependencies": {
     "@floating-ui/vue": "^1.1.11",
-    "@graphql-typed-document-node/core": "^3.2.0",
-    "@tanstack/query-core": "^5.100.8",
-    "@tanstack/vue-query": "^5.100.8",
-    "@urql/core": "^6.0.1",
-    "@urql/vue": "^2.1.0",
     "@vueuse/core": "^14.3.0",
-    "@wagmi/core": "^3.4.8",
-    "@wagmi/vue": "^0.5.11",
     "@web3-onboard/injected-wallets": "^2.11.3",
     "@web3-onboard/vue": "^2.10.0",
-    "graphql": "^16.13.2",
     "marked": "^18.0.3",
-    "permissionless": "^0.2.57",
     "qrcode": "^1.5.4",
     "viem": "^2.48.8",
     "vite-svg-loader": "^5.1.1",
@@ -36,12 +27,6 @@
     "vue-router": "^5.0.6"
   },
   "devDependencies": {
-    "@axe-core/playwright": "^4.11.3",
-    "@graphql-codegen/cli": "^7.0.0",
-    "@graphql-codegen/client-preset": "^6.0.0",
-    "@graphql-codegen/typed-document-node": "^7.0.0",
-    "@graphql-codegen/typescript": "^6.0.0",
-    "@graphql-codegen/typescript-operations": "^6.0.0",
     "@playwright/test": "^1.59.1",
     "@tailwindcss/vite": "^4.2.4",
     "@types/node": "^25.6.0",
@@ -51,15 +36,12 @@
     "@vitest/coverage-v8": "^4.1.5",
     "@vue/eslint-config-prettier": "^10.2.0",
     "@vue/eslint-config-typescript": "^14.7.0",
-    "@vue/test-utils": "^2.4.10",
     "@vue/tsconfig": "^0.9.1",
     "@wagmi/cli": "^2.10.0",
     "autoprefixer": "^10.5.0",
     "eslint": "^10.3.0",
     "eslint-plugin-vue": "^10.9.0",
     "happy-dom": "^20.9.0",
-    "lighthouse": "^13.2.0",
-    "playwright-lighthouse": "^4.0.0",
     "postcss": "^8.5.8",
     "prettier": "^3.5.3",
     "tailwindcss": "^4.2.4",