reasampler/COMPLETED.md

COMPLETED.md — ReaSampler landed milestones

Completed milestone entries removed from PLAN.md. Each entry preserves its original Goal, Verify, and checklist points with boxes marked done.

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Milestone 0 — Transition scaffold: reaper_mpeview → ReaSampler

Goal: Retire the MPE scaffold and stand up the sampler's pure core in its place, preserving the pure-core / REAPER-shell split. Verify: cmake -B build -S . configures clean; cmake --build build builds the renamed extension target and the pure-core test target; ctest --test-dir build is green with the new bank_model + peaks suites present.

• Delete src/mpe_model.{h,cpp} and src/mpe_view.{h,cpp}; remove tests/test_mpe_model.cpp.
• Rename the CMake project() and the extension MODULE target from reaper_mpeview to reaper_reasampler (binary OUTPUT_NAME likewise); update PREFIX "" / platform SUFFIX blocks to the new target name.
• Replace the pure mpe_model static lib + mpe_model_tests executable with bank_model (pure static lib) + bank_model_tests; keep the CTest wiring.
• Repoint src/main.cpp: drop the mpe_view.h include and all MpeView_* calls (toggle / IsOpen / OnTimer / Cleanup); stub the extension entry so it loads, logs to console, and registers nothing MPE-specific. The command_id / gaccel / hookcommand registration pattern is preserved for reuse (CLAUDE.md §REAPER extension contract) — the MPE action string is removed.
• Choose and record the persistent action-id prefix for the sampler family (replaces CEREBELLUM_MPEVIEW_TOGGLE); this string is forever-stable once shipped (CLAUDE.md §action registration).
• Refresh README.md layout/next-step sections to the sampler module set. (Landed-work reflection is doc-keeper's; this point exists so the stale MPE README does not mislead the first implementer.)