docs(docker): expand rebuild trigger comments to include OpenSSL and Tauri CLI

.docker/Dockerfile.linux-amd64

@@ -1,7 +1,9 @@
 # Pre-baked builder for Linux amd64 Tauri releases.
 # All system dependencies are installed once here; CI jobs skip apt-get entirely.
 # Rebuild when: Rust toolchain version changes, webkit2gtk/gtk major version changes,
-# or Node.js major version changes.  Tag format: rust<VER>-node<VER>
+# Node.js major version changes, OpenSSL major version changes (used via OPENSSL_STATIC=1),
+# or Tauri CLI version changes that affect bundler system deps.
+# Tag format: rust<VER>-node<VER>
 FROM rust:1.88-slim
 
 RUN apt-get update -qq \

.docker/Dockerfile.linux-arm64

@@ -1,7 +1,9 @@
 # Pre-baked cross-compiler for Linux arm64 Tauri releases (runs on Linux amd64).
 # Bakes in: amd64 cross-toolchain, arm64 multiarch dev libs, Node.js, and Rust.
 # This image takes ~15 min to build but is only rebuilt when deps change.
-# Rebuild when: Rust toolchain version, webkit2gtk/gtk major version, or Node.js changes.
+# Rebuild when: Rust toolchain version, webkit2gtk/gtk major version, Node.js major version,
+# OpenSSL major version (used via OPENSSL_STATIC=1), or Tauri CLI changes that affect
+# bundler system deps.
 # Tag format: rust<VER>-node<VER>
 FROM ubuntu:22.04
 

.docker/Dockerfile.windows-cross

@@ -1,6 +1,8 @@
 # Pre-baked cross-compiler for Windows amd64 Tauri releases (runs on Linux amd64).
 # All MinGW and Node.js dependencies are installed once here; CI jobs skip apt-get entirely.
-# Rebuild when: Rust toolchain version changes or Node.js major version changes.
+# Rebuild when: Rust toolchain version changes, Node.js major version changes,
+# OpenSSL major version changes (used via OPENSSL_STATIC=1), or Tauri CLI changes
+# that affect bundler system deps.
 # Tag format: rust<VER>-node<VER>
 FROM rust:1.88-slim