portfolio pass: correct the CSP claim to match what nginx sends, rename the project outcome label, plain-english the projects intro and bio, standardise on Argo CD and single-touch, drop the education filler line

src/pages/projects/index.astro

@@ -10,11 +10,11 @@ const projects = (await getCollection("projects")).sort(
 ---
 
 <Layout title="Projects" path="/projects" description="Selected platform & infrastructure projects by Jonathon Wright.">
-  <Section id="all-projects" eyebrow="Projects" index="*" title="Some bytes I'm proud of - a starting line, not a trophy shelf.">
+  <Section id="all-projects" eyebrow="Projects" index="*" title="Systems I've built and run.">
     <p class="lead projects__intro" data-reveal>
       Edge Kubernetes, GPU inference, self-hosted AI, productionised network automation, and
       the infrastructure rigour that ties it together - each with the problem, the design, and
-      the outcome. More always cooking.
+      the outcome.
     </p>
     <div class="grid">
       {projects.map((entry, i) => <ProjectCard entry={entry} index={i + 1} />)}