Separate Maven dependency resolution from compilation:
- COPY pom.xml first, run dependency:resolve (cached layer)
- COPY src second (only this invalidates on code changes)
- Build step reuses cached dependencies
Result: Code changes rebuild in ~30s instead of 3-5 min
(Ghidra download and Maven deps stay cached)
GhydraMCPServer.java imports Gson but headless scripts run in a
separate OSGi classloader that can't access extension lib JARs.
Fix: Download gson-2.13.1.jar to Framework/Generic/lib/ where it's
available to all scripts regardless of execution mode.
Closes issue documented in BUG_REPORT_HEADLESS_GSON.md
