Kam 72559b4710 fix(docs-infra): redirect three removed pages instead of 404ing
`guide/http/security` and `reference/concepts` both still exist as content but
neither is routed, so each falls through to the 404 shell.

`guide/http/security` was navigable from November 2023 until #54365 removed its
entry in February 2024. #55029 then copied its XSRF sections into the security
guide, which already covered XSSI, and #55060 repointed the remaining links, so
it now redirects to `/best-practices/security`.

`reference/concepts` was added by #54365 and removed by #58694 in November
2024, leaving it navigable for nine months without a redirect. The same commit
also removed `guide/ngmodules`, the route its only card linked to, so both now
redirect to `/guide/ngmodules/overview`, alongside the four `guide/ngmodules/*`
paths already redirected there.

Both pages are removed, along with the Bazel package that existed only to build
the concepts page, and the stale `llms-list.md` entry for the HttpClient page.
The security guide takes its place in that list, so `llms-full.txt` keeps its
XSSI coverage and picks up CSP, Trusted Types and sanitization with it.

(cherry picked from commit 7da60d1920)
2026-08-25 10:08:47 -07:00
…
2026-02-17 08:23:59 -08:00
2026-08-19 13:10:35 -07:00
2025-11-06 10:03:05 -08:00
2026-01-07 12:28:34 -05:00
2026-04-27 17:08:02 -07:00
2026-05-11 12:43:55 -07:00

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Generates Angular code and provides architectural guidance. Trigger when creating projects, components, services, or HTTP communication, or for best practices…
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