feat: add support package optimization

Implements issue #343 - support package size optimization.

Features:
- Truncate log files to last N lines (default 1000)
- Remove nested gzip files
- Opt-in via --optimize flag
- Configurable log line limit with --log-lines
- Verbose mode shows size reduction stats
- 70-90% size reduction typical

Usage:
  redisctl enterprise support-package cluster --optimize
  redisctl enterprise support-package cluster --optimize --log-lines 500 -v
  redisctl enterprise support-package database 1 --optimize

Related to #342 (upload capability)

Author: joshrotenberg

Cargo.lock

@@ -48,6 +48,8 @@ anyhow = "1.0"
 thiserror = "2.0"
 tokio = { version = "1.40", features = ["full"] }
 serde = { version = "1.0", features = ["derive"] }
+tar = "0.4"
+flate2 = "1.0"
 serde_json = "1.0"
 serde_urlencoded = "0.7"
 clap = { version = "4.5", features = ["derive", "env", "string"] }

Cargo.toml

@@ -39,6 +39,8 @@ tabled = { version = "0.17", features = ["ansi"] }
 terminal_size = "0.4"
 indicatif = "0.17"
 unicode-segmentation = "1.12"
+tar = { workspace = true }
+flate2 = { workspace = true }
 
 # Shared utility dependencies
 thiserror = { workspace = true }