fix(web): show the full commit hash in the build footer

The footer abbreviated to 7 characters, so the line read
"v master · 19f0319". That line exists to be pasted into `git show` or
compared against a registry tag, and an abbreviation makes both a manual
step — while the full 40-char value was already baked into the image
(build.yml passes `github.sha` whole, and /version returns it untouched).

`shortSha` had no other caller, so it goes with it.

The span gets `overflow-wrap: anywhere` and `min-width: 0`: hex offers no
break opportunity, and the api/web mismatch branch renders two of these
hashes side by side, which would otherwise push a phone into horizontal
scroll. Measured at a simulated 360px with both hashes present — the span
wraps, and documentElement.scrollWidth stays equal to clientWidth.

Verified in the browser against the dev database: footer renders
"v1.0.0 · db2bd54c0ffee1234567890abcdef0123456789a", hash length 40.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

apps/web/src/components/AppShell.tsx

@@ -4,7 +4,7 @@ import { useEffect, useRef, useState, type ReactNode } from "react";
 import { usePathname, useRouter } from "next/navigation";
 import Link from "next/link";
 import { getApiVersion, logout, me, updateUiScale, type ServiceVersion } from "@/lib/api";
-import { shortSha, webBuildInfo } from "@/lib/build-info";
+import { webBuildInfo } from "@/lib/build-info";
 import { AuthContext, can } from "@/lib/abilities";
 import { ROLE_LABEL } from "@/lib/labels";
 import {
@@ -217,12 +217,16 @@ function BuildFooter() {
   return (
     <footer className="shell-footer">
       <span>Jorge Cuadros &amp; Asociados</span>
+      {/* The FULL 40-char commit, not an abbreviation: this line exists to be
+          pasted into `git show` or compared against a registry tag, and a
+          7-char prefix makes both a manual step. It is what GIT_SHA already
+          carries — build.yml bakes in `github.sha` whole. */}
       <span
         className="shell-footer-build"
-        title={`web ${web.version} (${shortSha(web.gitSha)}) — ${web.buildDate}`}
+        title={`web ${web.version} (${web.gitSha}) — ${web.buildDate}`}
       >
-        v{web.version} · {shortSha(web.gitSha)}
-        {mismatch && api ? ` · API ${shortSha(api.gitSha)}` : ""}
+        v{web.version} · {web.gitSha}
+        {mismatch && api ? ` · API ${api.gitSha}` : ""}
       </span>
       {mismatch && (
         <span className="shell-footer-warn" role="status">