feat(snapshots): Add local image diff command using odiff

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: NicoHinderling

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Features
+
+- (snapshots) Add `snapshots diff` command for locally comparing directories of PNG snapshot images using odiff ([#3306](https://github.com/getsentry/sentry-cli/pull/3306))
+
 ### Fixes
 
 - Respect `CURL_CA_BUNDLE` and `SSL_CERT_FILE` when configuring TLS certificate authorities ([#3301](https://github.com/getsentry/sentry-cli/pull/3301)).

Cargo.lock

@@ -69,6 +69,7 @@ sha1_smol = { version = "1.0.0", features = ["serde", "std"] }
 sha2 = "0.10.9"
 sourcemap = { version = "9.3.0", features = ["ram_bundle"] }
 symbolic = { version = "12.13.3", features = ["debuginfo-serde", "il2cpp"] }
+tar = "0.4"
 thiserror = "1.0.38"
 tokio = { version = "1.47", features = ["rt"] }
 url = "2.3.1"