Rewrite bio in first person, tighten from 500+ to ~260 words

The mini-bio at the bottom of every post was 268 words of third-person
resume prose: every past role listed, every employer clause hedged,
the two best voice lines buried in paragraphs 2 and 3. It read like a
LinkedIn summary grafted onto a first-person blog.

New version:
- First person throughout (matches the rest of the site)
- Paragraph 1 drops from 268 to ~90 words; opens with the name, the
  tagline, the current role, and two one-line role summaries of the
  career arc. Enough context, none of the org-chart prose.
- Surfaces the two strongest lines earlier: the US CTO 'baddest
  innovators' quote in paragraph 2, and the duct-tape-and-bubblegum
  line stays in paragraph 3 (switched to 'I' from 'he').
- Replaces 'world's largest software development platform' filler and
  the 500-features enumeration with a single direct line about what
  I've actually been doing: figuring out how large engineering
  organizations work.

Updated the first-sentence extraction tests to match. Meta
description now starts with the name and tagline instead of the
director-title-with-department-clause that was there before.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: benbalter

src/content/about-bio.test.ts

@@ -5,7 +5,7 @@ describe('getFirstSentence', () => {
   it('extracts first sentence from bio content', () => {
     const result = getFirstSentence(aboutContent);
     expect(result).toBe(
-      "Ben Balter is the Director of Hubber Enablement within the Office of the COO at GitHub, the world's largest software development platform, ensuring all Hubbers can do their best (remote) work."
+      "I'm Ben Balter — I write here about engineering leadership, open source, and showing your work."
     );
   });
 
@@ -14,8 +14,6 @@ describe('getFirstSentence', () => {
     // Should not contain markdown link syntax
     expect(result).not.toContain('[GitHub]');
     expect(result).not.toContain('](https://github.com/about)');
-    // Should contain the link text
-    expect(result).toContain('GitHub');
   });
 
   it('returns reasonable length for meta description', () => {
@@ -24,8 +22,8 @@ describe('getFirstSentence', () => {
     expect(result.length).toBeLessThanOrEqual(200);
     // First 150 characters should contain key information
     const first150 = result.substring(0, 150);
-    expect(first150).toContain('Director of Hubber Enablement');
-    expect(first150).toContain('GitHub');
+    expect(first150).toContain('Ben Balter');
+    expect(first150).toContain('engineering leadership');
   });
 
   it('handles content with markdown links', () => {

src/content/about-bio.ts

@@ -10,11 +10,11 @@
 
 import { escapeHtml } from '../utils/html-escape';
 
-export const aboutContent = `Ben Balter is the Director of Hubber Enablement within the Office of the COO at [GitHub](https://github.com/about), the world's largest software development platform, ensuring all Hubbers can do their best (remote) work. Previously, he served as the Director of Technical Business Operations, and as Chief of Staff for Security, he managed the office of the Chief Security Officer, improving overall business effectiveness of the Security organization through portfolio management, strategy, planning, culture, and values. As a Staff Technical Program manager for Enterprise and Compliance, Ben managed GitHub's on-premises and SaaS enterprise offerings, and as the Senior Product Manager overseeing the platform's Trust and Safety efforts, Ben shipped more than 500 features in support of community management, privacy, compliance, content moderation, product security, platform health, and open source workflows to ensure the GitHub community and platform remained safe, secure, and welcoming for all software developers. Before joining GitHub's Product team, Ben served as GitHub's Government Evangelist, leading the efforts to encourage more than 2,000 government organizations across 75 countries to adopt open source philosophies for code, data, and policy development.
+export const aboutContent = `I'm Ben Balter — I write here about engineering leadership, open source, and showing your work. By day I'm Director of Hubber Enablement at [GitHub](https://github.com/about), where I help thousands of GitHubbers do their best remote work. Before this role: Chief of Staff for Security, enterprise PM, and GitHub's first Government Evangelist. Before GitHub: attorney, Presidential Innovation Fellow, and member of the White House's first agile development team.
 
-Described by the US Chief Technology Officer as one of "the baddest of the badass innovators," prior to GitHub, Ben was a member of the inaugural class of Presidential Innovation Fellows where he served as entrepreneur in residence reimagining the role of technology in brokering the relationship between citizens and government. Ben has also served as a Fellow in the Office of the US Chief Information Officer within the Executive Office of the President where he was instrumental in drafting President Obama's Digital Strategy and Open Data Policy, and on the SoftWare Automation and Technology (SWAT) Team, the White House's first agile development team. His paper, [Towards a More Agile Government](/2011/11/29/towards-a-more-agile-government/) was published in the Public Contract Law Journal, arguing that Federal IT Procurement should be more amenable to modern, agile development methods.
+The US CTO once called me one of "the baddest of the badass innovators" — the single nicest thing anyone's ever put in print about me. I helped draft parts of President Obama's Digital Strategy and Open Data Policy, and argued in the Public Contract Law Journal that [federal IT procurement should look more like modern software development](/2011/11/29/towards-a-more-agile-government/). Mostly, I've spent the last decade trying to figure out how large engineering organizations actually work — and why the obvious answers are usually wrong.
 
-As an attorney passionate about the disruptive potential of technology, Ben holds a J.D. and an M.B.A. from the George Washington University and is a member of the DC Bar. When not trying to change the world, he enjoys tackling otherwise-impossible challenges to sharing information using nothing more than duct tape, version control, and occasionally a pack of bubblegum. [Full resume](/resume/).`;
+I hold a J.D. and M.B.A. from the George Washington University and am a member of the DC Bar. When I'm not trying to change the world, I enjoy tackling otherwise-impossible challenges to sharing information using nothing more than duct tape, version control, and occasionally a pack of bubblegum. [Full resume](/resume/).`;
 
 /**
  * Validate URL to only allow safe protocols