feat: Complete Phase 4 & 5 - Finish adapter migration

Phase 4 - Page Server Components:
- Migrated database page servers to use EntityAdapter directly
- Removed fetch parameter from all page server loads

Phase 5 - Utility Files:
- Deleted lib/api.ts (functionality inlined)
- Deleted lib/server/detail/load.ts (no longer needed)
- Updated DatabaseProvider to use PUBLIC_SIERO_API_URL directly
- Updated OAuth to use native fetch type

Migration Complete:
- All 32 files migrated from api/core to adapter pattern
- Zero remaining dependencies on lib/api/core
- Clean separation of concerns with dedicated adapters

src/lib/api.ts

@@ -1,7 +0,0 @@
-import type { FetchLike } from '$lib/api/core'
-import { buildUrl, json } from '$lib/api/core'
-
-export async function getJson<T>(path: string, fetchFn: FetchLike, init?: RequestInit): Promise<T> {
-  const url = buildUrl(path)
-  return json<T>(fetchFn, url, init)
-}

src/lib/auth/oauth.ts

@@ -1,4 +1,3 @@
-import type { FetchLike } from '$lib/api/core'
 import { OAUTH_BASE } from '$lib/config'
 
 export interface OAuthLoginResponse {
@@ -13,8 +12,9 @@ export interface OAuthLoginResponse {
 		role: number
 	}
 }
+
 export async function passwordGrantLogin(
-	fetchFn: FetchLike,
+	fetchFn: typeof fetch,
 	body: { email: string; password: string; grant_type: 'password' }
 ): Promise<OAuthLoginResponse> {
 	const url = `${OAUTH_BASE}/token`

src/lib/providers/DatabaseProvider.ts

@@ -1,5 +1,7 @@
 import { RestDataProvider } from 'wx-grid-data-provider'
-import { API_BASE } from '$lib/api/core'
+import { PUBLIC_SIERO_API_URL } from '$env/static/public'
+
+const API_BASE = PUBLIC_SIERO_API_URL || 'http://localhost:3000'
 
 interface DatabaseProviderOptions {
 	resource: 'weapons' | 'characters' | 'summons'

src/lib/server/detail/load.ts

@@ -1,31 +0,0 @@
-import type { FetchLike } from '$lib/api/core'
-import { get } from '$lib/api/core'
-import { error } from '@sveltejs/kit'
-
-export type Resource = 'characters' | 'weapons' | 'summons'
-
-function singular(type: Resource): 'character' | 'weapon' | 'summon' {
-  if (type === 'characters') return 'character'
-  if (type === 'weapons') return 'weapon'
-  return 'summon'
-}
-
-export async function getResourceDetail(fetch: FetchLike, type: Resource, id: string, normalize?: (m: any) => any) {
-  try {
-    const item = await get<any>(fetch, `/${type}/${id}`)
-    if (!item) throw error(404, 'Not found')
-    return normalize ? normalize(item) : item
-  } catch (e: any) {
-    // Map HTTP 404 from API client into SvelteKit 404
-    if (e?.message?.includes('HTTP 404')) throw error(404, 'Not found')
-    throw error(500, `Failed to load ${singular(type)}`)
-  }
-}
-
-export const createDetailLoader = (type: Resource, normalize?: (m: any) => any) =>
-  async ({ params, fetch, parent }: { params: { id: string }; fetch: FetchLike; parent: () => Promise<any> }) => {
-    const { role } = await parent()
-    const item = await getResourceDetail(fetch, type, params.id, normalize)
-    return { [singular(type)]: item, role }
-  }
-

src/routes/about/+page.ts

@@ -1,6 +1,8 @@
-import { getJson } from '$lib/api'
+import { PUBLIC_SIERO_API_URL } from '$env/static/public'
 
 export const load = async ({ fetch }) => {
-	const status = await getJson<any>('/api/v1/version', fetch)
+	const apiBase = PUBLIC_SIERO_API_URL || 'http://localhost:3000'
+	const response = await fetch(`${apiBase}/api/v1/version`)
+	const status = await response.json()
 	return { status }
 }

src/routes/database/characters/[id]/+page.server.ts

@@ -1,13 +1,13 @@
 import type { PageServerLoad } from './$types'
-import { get } from '$lib/api/core'
+import { entityAdapter } from '$lib/api/adapters'
 import { error } from '@sveltejs/kit'
 
-export const load: PageServerLoad = async ({ params, fetch, parent }) => {
+export const load: PageServerLoad = async ({ params, parent }) => {
 	try {
 		// Get parent data to access role
 		const parentData = await parent()
 
-		const character = await get(fetch, `/characters/${params.id}`)
+		const character = await entityAdapter.getCharacter(params.id)
 
 		if (!character) {
 			throw error(404, 'Character not found')

src/routes/database/summons/[id]/+page.server.ts

@@ -1,13 +1,13 @@
 import type { PageServerLoad } from './$types'
-import { get } from '$lib/api/core'
+import { entityAdapter } from '$lib/api/adapters'
 import { error } from '@sveltejs/kit'
 
-export const load: PageServerLoad = async ({ params, fetch, parent }) => {
+export const load: PageServerLoad = async ({ params, parent }) => {
 	try {
 		// Get parent data to access role
 		const parentData = await parent()
 
-		const summon = await get(fetch, `/summons/${params.id}`)
+		const summon = await entityAdapter.getSummon(params.id)
 
 		if (!summon) {
 			throw error(404, 'Summon not found')

src/routes/database/weapons/[id]/+page.server.ts

@@ -1,13 +1,13 @@
 import type { PageServerLoad } from './$types'
-import { get } from '$lib/api/core'
+import { entityAdapter } from '$lib/api/adapters'
 import { error } from '@sveltejs/kit'
 
-export const load: PageServerLoad = async ({ params, fetch, parent }) => {
+export const load: PageServerLoad = async ({ params, parent }) => {
 	try {
 		// Get parent data to access role
 		const parentData = await parent()
 
-		const weapon = await get(fetch, `/weapons/${params.id}`)
+		const weapon = await entityAdapter.getWeapon(params.id)
 
 		if (!weapon) {
 			throw error(404, 'Weapon not found')