remove the map and ui shim packages

Both failed the deletion test in the telling direction:

- @trails-cool/ui: Button/Input/Card had zero consumers — both apps
  roll their own elements inline. The only live part was a 6-line
  styles.css (the Tailwind entry + one keyframe), which now lives in
  each app as app/styles.css.
- @trails-cool/map: MapView and RouteLayer had zero consumers; the
  package was otherwise a re-export of two map-core constants, and the
  two import sites now use @trails-cool/map-core directly. The
  "map components go in @trails-cool/map" convention had drifted long
  ago — the real map components live in apps/planner/app/components.

CLAUDE.md's repository structure and conventions updated to match
reality (including pointing shared-type guidance at the post-#515
sources: db row types, api contracts, Waypoint in types). Dockerfiles
no longer COPY the deleted package manifests.

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

apps/journal/app/root.tsx

@@ -15,7 +15,7 @@ import { AccountDropdown } from "~/components/AccountDropdown";
 import { MobileNavMenu } from "~/components/MobileNavMenu";
 import { initSentryClient, stopSentryClient } from "~/lib/sentry.client";
 import { TERMS_VERSION } from "~/lib/legal";
-import stylesheet from "@trails-cool/ui/styles.css?url";
+import stylesheet from "./styles.css?url";
 
 // Paths that must stay reachable even when the user has a stale
 // terms_version, so they can read the Terms, accept them, or log out.

apps/journal/app/styles.css

@@ -0,0 +1,6 @@
+@import "tailwindcss";
+
+@keyframes slide {
+  0% { transform: translateX(-100%); }
+  100% { transform: translateX(400%); }
+}