Prepare for public release

- README, LICENSE (MIT for the port layer), NOTICE, CONTRIBUTING.
- Restructure docs: internals.md, porting-notes.md, dev-process.md +
  dev/agentic-development.md (the research write-up), dev/ (raw record).
- Replace decomp status-badge CI with a PC-port validate workflow.
- Remove session/agent scaffolding and stale planning docs from the tree.
- Add .gitattributes (normalize line endings to LF); add screenshots.

The pre-2026-08 history is the GoldenEye 007 decompilation by Larry Ficken
(KholdFuzion) and contributors, preserved unchanged. The PC-port work from
2026-08-17 on is mine.

docs/dev/LEVEL-PLAYTEST.md

@@ -0,0 +1,77 @@
+# LEVEL-PLAYTEST — WS6 human completion-validation checklist
+
+Run **after** `docs/LEVEL-STATUS.md` is all-21 load+render PASS. This is
+the part that needs real input — a human plays each level start to finish
+and confirms it matches retail. Findings feed a WS5-style triage round
+(log each as a crash-class row or a new Dxx candidate).
+
+## How to run one level
+
+```sh
+export PATH="/c/msys64/mingw64/bin:$PATH" && ./build-pc.sh ntsc-final
+./build-pc/ge007.x86_64.exe -level_XX          # bare — pools auto-injected (D121)
+```
+
+Controls: `port/src/input.c` — keyboard+mouse or SDL gamepad. Mouse-look is
+mode-aware since M-24 (hold RMB = analog aim). **M-24 input/QoL changes +
+what to verify while playing: `docs/M-24-QOL-REVIEW.md`.** Tune feel in
+`data/ge007.ini` `[Input]` (`MouseAimSpeed` 50, `MouseTurnSpeed` 100,
+`MouseInvertY` 0) with the game closed. Known residual (do not re-log):
+D118a — hipfire pitch is digital vs analog yaw. **F12** = screenshot to
+`ppm/shot_NNN.ppm`. **Mouse wheel** = cycle weapon. **Alt-Enter** =
+fullscreen. Alt-tab away frees the cursor (re-grabs on focus). Title bar
+shows FPS.
+Difficulty for a bare `-level_XX` boot defaults to Agent; use the menu path
+(mission select → difficulty) to test 00/007.
+
+Objective status: `src/game/objective_status.c`
+(`get_status_of_objective()` `:161`); objective propDefs are
+`PROPDEF_OBJECTIVE_*` (`bondconstants.h:4332`).
+
+## Per-level checklist (copy this block per level)
+
+```
+### <Level> (-level_XX)   difficulty tested: [ ] Agent  [ ] Secret Agent  [ ] 00 Agent
+
+- [ ] Spawn point + start orientation match retail
+- [ ] Geometry / textures / lighting recognisable, no missing rooms
+- [ ] Guards spawn, path, react, take/deal damage, die correctly
+- [ ] Doors / lifts / switches / destructibles work
+- [ ] Pickups (ammo, armour, key items, gadgets) present and collectable
+- [ ] Each difficulty-gated objective reachable AND registers COMPLETE
+      (objective_status)
+- [ ] Alarms / reinforcements / scripted events fire
+- [ ] Level exit trigger fires → MISSION COMPLETE (not a hang / wrong screen)
+- [ ] Auto-advance to next briefing works
+- [ ] Frame rate + timing acceptable
+- Notes / defects:
+```
+
+## 21 solo levels (mission order — numbers = `-level_XX`)
+
+| # | Level | -level | Briefing asset |
+|---|---|---|---|
+| 1 | Dam | 33 | UbriefdamZ |
+| 2 | Facility | 34 | UbriefarkZ |
+| 3 | Runway | 35 | UbriefrunZ |
+| 4 | Surface 1 | 36 | UbriefsevxZ |
+| 5 | Bunker 1 | 09 | UbriefsevbunkerZ |
+| 6 | Silo | 20 | UbriefsiloZ |
+| 7 | Frigate | 26 | UbriefdestZ |
+| 8 | Surface 2 | 43 | UbriefsevxbZ |
+| 9 | Bunker 2 | 27 | UbriefsevbZ |
+| 10 | Statue | 22 | UbriefstatueZ |
+| 11 | Archives | 24 | UbriefarchZ |
+| 12 | Streets | 29 | UbriefpeteZ |
+| 13 | Depot | 30 | UbriefdepoZ |
+| 14 | Train | 25 | UbrieftraZ |
+| 15 | Jungle | 37 | UbriefjunZ |
+| 16 | Control | 23 | UbriefcontrolZ |
+| 17 | Caverns | 39 | UbriefcaveZ |
+| 18 | Cradle | 41 | UbriefcradZ |
+| 19 | Aztec | 28 | UbriefaztZ |
+| 20 | Egypt | 32 | UbriefcrypZ |
+| 21 | Cuba | 54 | (post-Egypt unlock) |
+
+(Mission table: `front.c:433`. Cuba = `LEVELID_CUBA`, not in the standard
+folder list — unlocked after Egypt.)