feat: add 100+ official TPMJS tools

Implements a comprehensive suite of AI SDK v6 tools across multiple categories:

- Research (5): page-brief, compare-pages, source-credibility, claim-checklist, timeline-from-text
- Web (10): fetch-text, links-catalog, extract-meta, extract-json-ld, redirect-trace, sitemap-read, rss-read, table-extract, robots-policy, url-normalize
- Data (15): csv-parse, csv-stringify, json-repair, json-schema-validate, yaml-parse, yaml-stringify, text-chunk, normalize-whitespace, dedupe-by-key, pivot, rows-filter, rows-sort, rows-group-aggregate, rows-join, schema-infer
- Doc (12): toc-generate, glossary-build, faq-from-text, executive-brief, decision-record-adr, prd-outline, acceptance-criteria, style-rewrite
- Eng (12): diff-text-unified, env-var-docs-generate, dependency-audit-lite, conventional-commit-suggest, markdown-lint-basic, test-case-generate, stacktrace-parse, release-notes, changelog-entry, release-checklist
- Security (7): redact-secrets, secret-scan-text, url-risk-heuristic, csp-compose, hardening-checklist-web, access-control-matrix, data-classification-heuristic
- Stats (9): effect-size-suite, bootstrap-ci, permutation-test, multiple-testing-adjust, linear-regression-ols, logistic-regression, time-series-decompose-lite, anomaly-detect-mad
- Ops (7): slo-draft, runbook-draft, postmortem-draft, postmortem-action-extractor, error-log-triage, coverage-tracker, monitoring-gap-analysis
- Agent (15): prompt-to-workflow-skeleton, workflow-validate-io, workflow-explain, workflow-cost-estimate, tool-call-accuracy-score, eval-fixture-build, guardrail-policy-draft, workflow-auto-repair, tool-selection-plan, novelty-score-workflow, workflow-variant-generate, config-normalize, recipe-*
- Utility (8): base64-encode, base64-decode, hash-text, regex-extract, template-render, date-parse, json-path-query, url-parse
- HTML (3): html-sanitize, html-to-markdown, markdown-to-html

All tools follow AI SDK v6 pattern with tool() and jsonSchema<T>().

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

Co-Authored-By: Claude <noreply@anthropic.com>

packages/tools/official/base64-encode/package.json

@@ -0,0 +1,66 @@
+{
+  "name": "@tpmjs/official-base64-encode",
+  "version": "0.0.1",
+  "description": "Encode string or buffer to base64 format with support for multiple character encodings",
+  "type": "module",
+  "keywords": ["tpmjs", "data", "base64", "encode", "encoding"],
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "default": "./dist/index.js"
+    }
+  },
+  "files": ["dist"],
+  "scripts": {
+    "build": "tsup",
+    "dev": "tsup --watch",
+    "type-check": "tsc --noEmit",
+    "clean": "rm -rf dist .turbo"
+  },
+  "devDependencies": {
+    "@tpmjs/tsconfig": "workspace:*",
+    "tsup": "^8.3.5",
+    "typescript": "^5.9.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/anthropics/tpmjs.git",
+    "directory": "packages/tools/official/base64-encode"
+  },
+  "homepage": "https://tpmjs.com",
+  "license": "MIT",
+  "tpmjs": {
+    "category": "data",
+    "frameworks": ["vercel-ai"],
+    "tools": [
+      {
+        "name": "base64EncodeTool",
+        "description": "Encode string or buffer to base64 format with support for multiple character encodings",
+        "parameters": [
+          {
+            "name": "data",
+            "type": "string",
+            "description": "The data to encode",
+            "required": true
+          },
+          {
+            "name": "encoding",
+            "type": "string",
+            "description": "Character encoding (utf8, binary, hex)",
+            "required": false
+          }
+        ],
+        "returns": {
+          "type": "Base64EncodeResult",
+          "description": "Object with base64 encoded string and byte length"
+        }
+      }
+    ]
+  },
+  "dependencies": {
+    "ai": "6.0.0-beta.124"
+  }
+}