Plan the idiomatic-Go refactor in TODO.md

Itemize the refactor from transliterated port to idiomatic Go: eight
stepped feature branches (descriptive constant renames, typed kind
enums, un-overloaded Object fields, per-subsystem method renames,
god-object extraction, effects dispatch tables, constructor/style
pass, docs refresh), slotted ahead of the existing playtest/lint/
release steps. Also add the styleguide-required .gitignore (a stray
built binary was sitting untracked in the root).

.gitignore

@@ -0,0 +1,4 @@
+*.log
+*.out
+*.test
+/rogue

TODO.md

@@ -2,13 +2,33 @@
 
 pre-1.0
 
+The port on main is complete and faithful (function-by-function from
+Rogue 5.4.4 C; reference sources on c-master/modern-rogue). Current
+phase: refactor from a transliterated port into idiomatic Go — one
+feature branch per step below, descriptive naming, real types, house
+style per ~/dev/prompts/prompts/CODE_STYLEGUIDE_GO.md.
+
+Refactor ground rules:
+
+- Behavior must not change unless a step says so. The full test suite
+  (scripted sessions, generation invariants, C-compatible RNG goldens)
+  gates every step; 80x24 seed-compatible gameplay stays intact.
+- Renames keep the C lineage greppable: doc comments retain their
+  "(file.c func_name)" breadcrumbs, and the docs refresh step adds a
+  C-name → Go-name table to ARCHITECTURE.md.
+
 # Next Step
 
-Playtest hardening pass: play several full games with the tcell binary
+Refactor step 1 (branch refactor/descriptive-constants): rename
-and extend run_test.go to script a deeper multi-level playthrough
+constants to descriptive, less C-like names. Creature/object/room/place
-(descend past level 5, use potions, scrolls, zapping, save/restore).
+flag bits (IsHuh→Confused, IsHalu→Hallucinating, CanHuh→CanConfuse,
-Fix any panics, message mismatches, or divergences from the C behavior
+SeeMonst→SenseMonsters, ObjIsFound→WasFound, IsCanc→Cancelled, ...),
-that this uncovers, and commit the fixes with regression tests.
+trap types (TMyst→TrapMystery), item subtype constants
+(PLSD→PotionLSD, SIDRorS→ScrollIdentifyRingOrStick,
+RAddHit→RingDexterity, WsHasteM→WandHasteMonster,
+TwoSword→WeaponTwoHandedSword, ...), Max* count constants →
+Num*Types, and the Level.NTraps field → TrapCount. Pure rename; no
+behavior change; tests unchanged.
 
 # Completed Steps
 
@@ -33,15 +53,58 @@ that this uncovers, and commit the fixes with regression tests.
 
 # Future Steps
 
-1. Adopt the house Go linting standards: copy .golangci.yml from the
+1. Refactor step 2: typed kind enums — PotionKind, ScrollKind,
+   RingKind, WandKind, WeaponKind, ArmorKind, TrapKind as iota enums
+   with fmt.Stringer; Object.Which and the ObjInfo tables move to the
+   typed kinds; the object category glyph bytes ('!', '?', ...) become
+   an ObjectKind with a Glyph() method so item category and map
+   character stop sharing one byte namespace.
+2. Refactor step 3: un-overload Object fields — split Object.Arm into
+   ArmorClass/Charges/GoldValue; parse damage dice ("1x4/1x2") once
+   into a DiceSpec type at table definition instead of per swing;
+   save-format update with round-trip test migration.
+3. Adopt the house Go linting standards: copy .golangci.yml from the
    prompts repo and bring game/, term/, and cmd/ lint-clean (the port
    is greenfield code, so no exemptions apply).
-2. Verify the seed-compatibility claim against the C reference on
+4. Refactor step 4: method renames, movement/world subsystem
-   master: same seed, same dungeon, same item tables, for several
+   (doMove→moveHero, beTrapped→springTrap, rndmove→randomStep,
+   doRooms/doPassages/doMaze→digRooms/digPassages/digMaze,
+   chgStr→changeStrength, ...); remove the goto/label flows in doMove,
+   dispatch, and saveGame in favor of loops and helpers.
+5. Refactor step 5: method renames, items/combat/UI subsystems
+   (invName→inventoryName, rollEm→rollAttacks, doPot→applyPotionFuse,
+   getItem→promptPackItem returning (obj, ok), getDir→promptDirection);
+   int status codes (attack returning -1) become named results. Two or
+   three commits, one subsystem each.
+6. Refactor step 6: extract types from the god object — MessageLine
+   owns the msg/addmsg/endmsg machinery; pack/inventory operations move
+   onto *Player; monster/object list management and map queries
+   consolidate onto *Level; RogueGame keeps turn orchestration and
+   cross-system effects only.
+7. Refactor step 7: effects dispatch — the giant quaff/readScroll/doZap
+   switches become per-kind handler tables of small named methods,
+   keeping effect order and RNG call sequence identical.
+8. Refactor step 8: constructor and style pass per the house
+   styleguide — game.New(game.Params{...}) replacing NewGame(Config);
+   replace the gameEnd panic unwind with error-based turn results where
+   feasible; 77-column wrap sweep.
+9. Docs refresh: update ARCHITECTURE.md Part 2 and README.md for the
+   post-refactor names; add the C name → Go name rename table.
+10. Playtest hardening pass: play several full games with the tcell
+    binary and extend run_test.go to script a deeper multi-level
+    playthrough (descend past level 5, use potions, scrolls, zapping,
+    save/restore). Fix any panics, message mismatches, or divergences
+    from the C behavior that this uncovers, with regression tests.
+11. Verify the seed-compatibility claim against the C reference on
+    c-master: same seed, same dungeon, same item tables, for several
     seeds.
-3. Broaden unit test coverage where playtesting finds thin spots
+12. Broaden unit test coverage where playtesting finds thin spots
     (rings, sticks, wizard commands).
-4. Tag a release once a full game (Amulet retrieval and score entry)
+13. Tag a release once a full game (Amulet retrieval and score entry)
     completes without defects.
-5. Note: this repo is exempt from the standard policy scaffold. Do not
+14. Full-terminal-size support (deferred by explicit decision
+    2026-07-06): per-game dungeon dimensions instead of the 80x24
+    constants; open design questions are resize policy, gameplay
+    tuning at larger sizes, and a --classic 80x24 mode.
+15. Note: this repo is exempt from the standard policy scaffold. Do not
     add Makefile, Dockerfile, or REPO_POLICIES.md.