Drop Http::setRoute()

The matched route is owned by the routing pipeline and lives in the
per-request context. setRoute let arbitrary code overwrite it post-match
without invalidating any other state — a footgun under coroutines and
not used in production. Drop it; getRoute() remains as a read-only view.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: loks0n

src/Http/Http.php

@@ -405,7 +405,8 @@ public static function getRoutes(): array
     }
 
     /**
-     * Get the current route
+     * Get the route matched for the current request, or null if none matched
+     * yet (or no match was found). Populated by {@see Http::match()}.
      */
     public function getRoute(): ?Route
     {
@@ -418,16 +419,6 @@ public function getRoute(): ?Route
         return $route instanceof Route ? $route : null;
     }
 
-    /**
-     * Set the current route
-     */
-    public function setRoute(Route $route): self
-    {
-        $this->context()->set('route', fn() => $route, []);
-
-        return $this;
-    }
-
     /**
      * Add Route
      *

tests/HttpTest.php

@@ -576,15 +576,6 @@ public function testCanHookThrowExceptions(): void
         $this->assertSame('(init)-y-def-x-def-(shutdown)', $result);
     }
 
-    public function testCanSetRoute(): void
-    {
-        $route = Http::get('/path');
-
-        $this->assertNull($this->http->getRoute());
-        $this->http->setRoute($route);
-        $this->assertSame($route, $this->http->getRoute());
-    }
-
     /**
      * @return \Iterator<string, array<int, string>>
      */