Rename image size config constants

IMAGE_SIZE_CONFIG_POSTS (4000px/2MB) and IMAGE_SIZE_CONFIG_2K_1MB
(2000px/1MB), replacing POST_IMG_MAX_SIZE and PROFILE_IMAGES_MAX_SIZE.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/lib/api/index.ts

@@ -21,7 +21,7 @@ import {sha256} from 'js-sha256'
 import {CID} from 'multiformats/cid'
 import * as Hasher from 'multiformats/hashes/hasher'
 
-import {POST_IMG_MAX_SIZE} from '#/lib/constants'
+import {IMAGE_SIZE_CONFIG_POSTS} from '#/lib/constants'
 import {isNetworkError} from '#/lib/strings/errors'
 import {shortenLinks, stripInvalidMentions} from '#/lib/strings/rich-text-manip'
 import {logger} from '#/logger'
@@ -326,7 +326,7 @@ async function resolveMedia(
         logger.debug(`Compressing image #${i}`)
         const {path, width, height, mime} = await compressImage(
           image,
-          POST_IMG_MAX_SIZE,
+          IMAGE_SIZE_CONFIG_POSTS,
         )
         logger.debug(`Uploading image #${i}`)
         const res = await uploadBlob(agent, path, mime)