🌈 Log Highlighting

Pattern-based enrichment turns plain build text into readable diagnostics.

Category	Examples Detected	Styling
Build Result	`BUILD SUCCESS`, `BUILD FAILURE`, `UNSTABLE`	Coloured + icon
Test Summary	`Tests run: X Failures: Y Errors: Z`	Numeric colour emphasis
Tools	`docker pull`, `git clone`, `npm install`	Prefixed icons & colour
Diffs	`@@ ... @@`, `+added`, `-removed`	Magenta hunk / green / red
Levels	`ERROR`, `WARN`, `INFO`, `DEBUG`, `TRACE`, stack traces	Rich labels / dim frames
JSON Lines	Single-line JSON objects / arrays	Pretty-highlighted or manual fallback
Paths & URLs	`~/file.ts`, `C:\path\a.js`, `https://...`	Cyan / underlined URLs
Progress	`31/120 (25%)` or just `31/120`	Recomputed percentage

Disable icons entirely: JENKINS_CLI_NO_ICONS=1 (or JENKINS_CLI_PLAIN=1).