Faster Function Lookup and GUI-Consistent Decompilation

• Much faster function lookup
  - Replaces repeated full-program function scans with indexed symbol-table lookups.
  - Benefits function resolution across code, comments, variables, structures, signatures, call graphs, and cross-reference tools.
  - Preserves qualified-name resolution, duplicate-name ordering, dynamic function names, and default/external thunk handling.
  - Thanks to @linted (https://github.com/linted) for the original contribution in PR #61 (#61).

  • Decompiler output now follows Ghidra’s configured options

    • MCP tools and prompts inherit the owning CodeBrowser’s Decompiler and Browser Fields settings.
    • Improves structure, array, pointer, cast, namespace, and formatting behavior relative to native defaults.
    • Supports the correct CodeBrowser when targeting programs across multiple windows.
    • Retains program-default behavior in headless mode.
    • Applies configured decompilation timeouts and invalidates cached code when relevant GUI options change.
    • Centralizes decompiler lifecycle management to ensure native resources are released reliably.
    • Addresses issue #59 (#59), reported by @RagingCactus (https://github.com/RagingCactus).

  • Modernized build toolchain

    • Targets the Ghidra 12.1 development environment.
    • Source builds now require Java 25 or newer.
    • Adds a verified Gradle 9.6.1 wrapper; use ./gradlew for builds and installation.
    • Adds JUnit test infrastructure covering function lookup and decompiler configuration.