fix(canary): vite dev proxy — correct backend port + stop stripping /api

Two latent template-leftover bugs in vite.config.ts proxy that 404'd every
useTokenTypes/useCreateToken/useManageToken/useDeleteToken call:

- Default target was http://localhost:8000. Backend listens on :8080
  (backend/config.yaml `server.port: 8080`, default registered in
  internal/config/config.go). Off-by-one-port silent for the whole
  Phase 14 cycle because Phase 14 didn't end-to-end-test.

- `rewrite: (p) => p.replace(/^\/api/, '')` stripped /api before forwarding.
  But backend mounts routes UNDER /api via `r.Route("/api", ...)`
  (cmd/canary/main.go:322). So a request for /api/tokens/types got rewritten
  to /tokens/types, which backend doesn't serve — 404 page not found.

Frontend axios uses baseURL `/api` and path `/tokens/types` → full URL
`/api/tokens/types`. With these fixes the proxy now passes that through
verbatim to http://localhost:8080/api/tokens/types, which is where chi
actually mounts the route.

dev.compose.yml: added VITE_API_TARGET=http://canary:8080 to the frontend
container's env so the dev-compose path also works (inside the container
"localhost" is the vite container, not the canary container — has to use
docker DNS).

Surfaced today when the operator manually eyeballed the landing page and
SpeciesSection rendered "Could not load species catalog. Try again in a
moment." (the descriptorsError branch in landing/index.tsx SpeciesSection).

PROJECTS/beginner/canary-token-generator/dev.compose.yml

@@ -13,7 +13,7 @@ services:
     image: nginx:1.27-alpine
     container_name: ${APP_NAME:-canary-token-generator}-nginx-dev
     ports:
-      - "${NGINX_HOST_PORT:-58495}:80"
+      - "${NGINX_HOST_PORT:-22784}:80"
     volumes:
       - ./infra/nginx/nginx.conf:/etc/nginx/nginx.conf:ro
       - ./infra/nginx/dev.nginx:/etc/nginx/conf.d/default.conf:ro
@@ -38,6 +38,7 @@ services:
       - frontend_modules:/app/node_modules
     environment:
       - VITE_API_URL=${VITE_API_URL:-/api}
+      - VITE_API_TARGET=${VITE_API_TARGET:-http://canary:8080}
       - VITE_APP_TITLE=${VITE_APP_TITLE:-Canary Token Generator}
       - VITE_TURNSTILE_SITE_KEY=${VITE_TURNSTILE_SITE_KEY:-}
     networks:

PROJECTS/beginner/canary-token-generator/frontend/vite.config.ts

@@ -32,9 +32,8 @@ export default defineConfig(({ mode }) => {
       host: '0.0.0.0',
       proxy: {
         '/api': {
-          target: env.VITE_API_TARGET || 'http://localhost:8000',
+          target: env.VITE_API_TARGET || 'http://localhost:8080',
           changeOrigin: true,
-          rewrite: (p) => p.replace(/^\/api/, ''),
         },
       },
     },