Remove stale importmap pin for nonexistent app/javascript/uploading.js

[EnriqueCanals]

Summary

config/importmap.rb pins "app/javascript/uploading", but the file app/javascript/uploading.js has never existed in this repository (the pin was added in the initial commit and has been an orphan ever since). The result is a noisy warning on every page render that loads the importmap, e.g. on the post / page edit forms:

Importmap skipped missing path: app/javascript/uploading.js
Importmap skipped missing path: app/javascript/uploading.js
Importmap skipped missing path: app/javascript/uploading.js

The Stimulus controller that actually powers data-controller="uploading" on the markdown_excerpt / markdown_body textareas lives at app/javascript/controllers/uploading_controller.js and is auto-registered through the existing infrastructure:

# config/importmap.rb
pin_all_from "app/javascript/controllers", under: "controllers"

// app/javascript/controllers/index.js
import { eagerLoadControllersFrom } from "@hotwired/stimulus-loading"
eagerLoadControllersFrom("controllers", application)

So the stray pin is dead weight — removing it silences the warning and changes nothing about upload behavior.

Why this is safe

• git log --diff-filter=A --name-only -- app/javascript/uploading.js returns nothing on main — the file has never existed.
• The actual Stimulus controller at app/javascript/controllers/uploading_controller.js is unaffected and continues to register as uploading via Stimulus' auto-loader.
• Active Storage's @rails/activestorage is still pinned (the line right above).

Test plan

• On a working tree, render /blog/new and /p/about after the change — no Importmap skipped lines in log/development.log.
• Markdown editor textareas (form.textarea ..., data: { controller: "uploading" }) still attach the Stimulus controller — drag-and-drop / paste-upload behavior unchanged.
• Production blog (https://enriquecanals.com) running this exact change continues to handle uploads correctly.

Made with Cursor