Remove unsupported workflow description fields (#6881)

## Summary
Remove top-level `description` keys from workflows because they are not
valid in GitHub Actions workflow syntax (see
https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax?utm_source=chatgpt.com).

## Changes
- **What**: delete the unsupported `description:` field from all
workflow YAMLs under `.github/workflows/`.

## Review Focus
- Confirm workflows still show intended names and triggers without the
invalid `description` metadata.

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6881-Remove-unsupported-workflow-description-fields-2b56d73d365081ed9f20eb7f57956bc6)
by [Unito](https://www.unito.io)

Author: benceruleanlu

.github/workflows/api-update-electron-api-types.yaml

@@ -1,5 +1,5 @@
+# Description: When upstream electron API is updated, click dispatch to update the TypeScript type definitions in this repo
 name: 'Api: Update Electron API Types'
-description: 'When upstream electron API is updated, click dispatch to update the TypeScript type definitions in this repo'
 
 on:
   workflow_dispatch:

.github/workflows/api-update-manager-api-types.yaml

@@ -1,5 +1,5 @@
+# Description: When upstream ComfyUI-Manager API is updated, click dispatch to update the TypeScript type definitions in this repo
 name: 'Api: Update Manager API Types'
-description: 'When upstream ComfyUI-Manager API is updated, click dispatch to update the TypeScript type definitions in this repo'
 
 on:
   # Manual trigger

.github/workflows/api-update-registry-api-types.yaml

@@ -1,5 +1,5 @@
+# Description: When upstream comfy-api is updated, click dispatch to update the TypeScript type definitions in this repo
 name: 'Api: Update Registry API Types'
-description: 'When upstream comfy-api is updated, click dispatch to update the TypeScript type definitions in this repo'
 
 on:
   # Manual trigger

.github/workflows/ci-json-validation.yaml

@@ -1,5 +1,5 @@
+# Description: Validates JSON syntax in all tracked .json files (excluding tsconfig*.json) using jq
 name: "CI: JSON Validation"
-description: "Validates JSON syntax in all tracked .json files (excluding tsconfig*.json) using jq"
 
 on:
   push:

.github/workflows/ci-lint-format.yaml

@@ -1,5 +1,5 @@
+# Description: Linting and code formatting validation for pull requests
 name: "CI: Lint Format"
-description: "Linting and code formatting validation for pull requests"
 
 on:
   pull_request:

.github/workflows/ci-python-validation.yaml

@@ -1,5 +1,5 @@
+# Description: Validates Python code in tools/devtools directory
 name: "CI: Python Validation"
-description: "Validates Python code in tools/devtools directory"
 
 on:
   pull_request:

.github/workflows/ci-tests-e2e-forks.yaml

@@ -1,5 +1,5 @@
+# Description: Deploys test results from forked PRs (forks can't access deployment secrets)
 name: "CI: Tests E2E (Deploy for Forks)"
-description: "Deploys test results from forked PRs (forks can't access deployment secrets)"
 
 on:
   workflow_run:

.github/workflows/ci-tests-e2e.yaml

@@ -1,5 +1,5 @@
+# Description: End-to-end testing with Playwright across multiple browsers, deploys test reports to Cloudflare Pages
 name: "CI: Tests E2E"
-description: "End-to-end testing with Playwright across multiple browsers, deploys test reports to Cloudflare Pages"
 
 on:
   push:

.github/workflows/ci-tests-storybook-forks.yaml

@@ -1,5 +1,5 @@
+# Description: Deploys Storybook previews from forked PRs (forks can't access deployment secrets)
 name: "CI: Tests Storybook (Deploy for Forks)"
-description: "Deploys Storybook previews from forked PRs (forks can't access deployment secrets)"
 
 on:
   workflow_run:

.github/workflows/ci-tests-storybook.yaml

@@ -1,10 +1,9 @@
+# Description: Builds Storybook and runs visual regression testing via Chromatic, deploys previews to Cloudflare Pages
 name: "CI: Tests Storybook"
-description: "Builds Storybook and runs visual regression testing via Chromatic, deploys previews to Cloudflare Pages"
 
 on:
   workflow_dispatch:  # Allow manual triggering
   pull_request:
-    branches: [main]
 
 jobs:
   # Post starting comment for non-forked PRs