fix(ci): improve Chromatic workflow — auto-accept on main, path filter

- Run on push to main to establish baselines (was PR-only)
- autoAcceptChanges on main — no manual review needed for source of truth
- Narrow path filter for main push (components, styles, storybook only)
- Broad path filter for PRs (frontend/**) to catch indirect regressions
- Fix if condition to handle both push and pull_request events

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: talissoncosta

.github/workflows/frontend-chromatic.yml

@@ -1,6 +1,15 @@
 name: Frontend Chromatic
 
 on:
+  push:
+    branches: [main]
+    paths:
+      - frontend/web/components/**
+      - frontend/web/styles/**
+      - frontend/common/theme/**
+      - frontend/documentation/**
+      - frontend/.storybook/**
+      - .github/workflows/frontend-chromatic.yml
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
     paths:
@@ -14,7 +23,7 @@ jobs:
   chromatic:
     name: Chromatic
     runs-on: ubuntu-latest
-    if: github.event.pull_request.draft == false
+    if: github.event_name == 'push' || github.event.pull_request.draft == false
 
     defaults:
       run:
@@ -43,3 +52,4 @@ jobs:
           exitZeroOnChanges: true
           exitOnceUploaded: true
           onlyChanged: true
+          autoAcceptChanges: main