chore(repo): drop tracked binaries, IDE config and scratch files

Removed files that should never have been committed:
- evolution-go (62 MB compiled Go binary at repo root)
- build/server (61 MB compiled binary — build/ is already gitignored
  but this file was tracked from before the rule existed)
- API-INTERACTIVE-DOCS.txt, DIFF-COMPLETO.txt, carousel-sender.html
  (one-off scratch dumps left over from the test-send modal work)
- .idea/, .DS_Store, .instance (IDE/OS/runtime local state)

Renamed:
- "Evolution GO.postman_collection (2).json" →
  "Evolution GO.postman_collection.json" (drops the ' (2)' duplicate
  suffix that came from a download, now matches the filename pattern
  documented in tools/docs/RELEASE_PROCESS.md checklist item #6).

Expanded .gitignore so these patterns don't come back (compiled
binaries at root, scratch *.txt dumps, the " (2)" duplicate pattern).

Note: git rm only removes these from the working tree going forward —
the 120+ MB of tracked binaries remain in history. That's a separate,
destructive operation (git filter-repo) and is not done here.

Author: DavidsonGomes

.DS_Store

@@ -7,6 +7,18 @@ coverage.*
 .idea/
 .vscode/
 .DS_Store
+.instance
+
+# Compiled binaries (Go builds output here at repo root / build/)
+/evolution-go
+/evolution-go-*
+!/evolution-go-manager/
+
+# Scratch dumps that used to get committed by accident
+DIFF-*.txt
+API-*-DOCS.txt
+carousel-sender.html
+*.postman_collection (*.json
 
 # Generated release directories (built by tools/build-dist/)
 dist/