feat(web): real /about and /docs pages (unique crawlable content)

Addresses the top cross-engine AEO finding — every route previously served
the homepage SPA. /about and /docs are now distinct routes with their own
server-rendered content and titles.

- /about: substantive about page (what LogicSRC is, the standards surface,
  CommandBoard.run reference impl, GitHub, hire-us) — derived from public
  positioning, no fabricated team.
- /docs + /docs/[slug]: render the repo's docs/*.md (curated public set) via
  marked, statically generated at build (no runtime fs dependency).
- Drop about/docs from the catch-all; add doc URLs to the sitemap.

Verified in a running build: /about and /docs serve unique content with
distinct titles; /docs/[slug] renders each markdown doc.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/logicsrc-web/src/app/about/page.tsx

@@ -0,0 +1,94 @@
+import type { ReactNode } from "react";
+import type { Metadata } from "next";
+import { SiteShell } from "@/components/site-shell";
+
+export const metadata: Metadata = {
+  title: "About · LogicSRC",
+  description:
+    "LogicSRC is the Profullstack, Inc. open-specification project for coordination between humans and AI agents — schemas, primitives, and conventions that products implement without owning the standard.",
+  alternates: { canonical: "/about" },
+};
+
+export default function AboutPage(): ReactNode {
+  return (
+    <SiteShell active="About">
+      <article className="band" style={{ maxWidth: "48rem" }}>
+        <div className="section-head">
+          <h2>About LogicSRC</h2>
+          <p>
+            LogicSRC is the open-specification project from{" "}
+            <a href="https://profullstack.com" rel="noreferrer">
+              Profullstack, Inc.
+            </a>{" "}
+            for coordination between humans, AI agents, plugins, payment systems,
+            and hosted products.
+          </p>
+        </div>
+
+        <div
+          className="blog-content"
+          style={{ lineHeight: 1.7, marginTop: "1.5rem" }}
+        >
+          <h3>What it is</h3>
+          <p>
+            LogicSRC defines a shared language — open JSON-Schema contracts and
+            conventions — so that independent tools, agents, and services can
+            coordinate without any one vendor owning the standard. Products
+            implement LogicSRC; they don&apos;t depend on a proprietary platform
+            to interoperate.
+          </p>
+
+          <h3>The standards surface</h3>
+          <ul>
+            <li>
+              <strong>Identity</strong> — DIDs, OAuth accounts, profiles, and
+              organization membership.
+            </li>
+            <li>
+              <strong>Coordination</strong> — boards, tasks, and the workflow
+              primitives agents and humans share.
+            </li>
+            <li>
+              <strong>Agents</strong> — agent profiles, capabilities, runs,
+              logs, permissions, and audit trails.
+            </li>
+            <li>
+              <strong>Value</strong> — payment, invoicing, and metering hooks.
+            </li>
+            <li>
+              <strong>Events</strong> — a common event envelope for policy,
+              audit, and webhooks.
+            </li>
+          </ul>
+
+          <h3>Reference implementation</h3>
+          <p>
+            <strong>CommandBoard.run</strong> is the first hosted product built
+            on LogicSRC — a modern BBS where humans and AI agents coordinate work
+            through boards, tasks, DID identity, OAuth, CLI, TUI, plugins,
+            reputation, audit logs, and payments. It demonstrates the primitives
+            across PWA, CLI, TUI, API, plugins, CoinPay, and uGig.
+          </p>
+
+          <h3>How it&apos;s built</h3>
+          <p>
+            The spec, schemas, SDKs, CLI, TUI, and reference plugins are
+            developed in the open at{" "}
+            <a href="https://github.com/profullstack/logicsrc" rel="noreferrer">
+              github.com/profullstack/logicsrc
+            </a>
+            . See the <a href="/docs">docs</a> for the data model and conventions,
+            or the <a href="/openspec">OpenSpec.dev comparison</a> for how LogicSRC
+            differs from repo-local planning specs.
+          </p>
+
+          <h3>Work with us</h3>
+          <p>
+            Profullstack implements LogicSRC-based systems at $250/week for
+            accepted work, paid via CoinPay. See <a href="/hire-us">Hire Us</a>.
+          </p>
+        </div>
+      </article>
+    </SiteShell>
+  );
+}