Add Gold save-editor support, rearrange the launcher, and ship a patch-notes modal.

The save editor now routes Gold vs RBY through a generation adapter so boxes, items, events, and maps write the right fields. The launcher layout is shuffled a bit, and patch notes can come from the updater, a packed file, or the iOS sidecar.

tests/engine/launcher_patch_notes.lua

@@ -0,0 +1,89 @@
+-- Launcher footer Patch notes control.  The GitHub release body is already
+-- fetched by the updater; this is the in-app viewer for it.
+--   luajit tests/engine/launcher_patch_notes.lua
+
+package.path = "./?.lua;./?/init.lua;" .. package.path
+
+local T = require("tests.harness")
+local check, eq = T.check, T.eq
+love = love or require("tests.love_stub")
+
+love.graphics.setLineJoin = love.graphics.setLineJoin or function() end
+love.graphics.newShader = love.graphics.newShader or function() return {} end
+
+local Kit = require("src.ui.kit.Kit")
+local RomImporter = require("src.import.RomImporter")
+local LauncherView = require("src.import.LauncherView")
+local PatchNotes = require("src.update.PatchNotes")
+
+local function window(w, h)
+  love.graphics.getDimensions = function() return w, h end
+  love.graphics.getPixelDimensions = function() return w, h end
+end
+
+local function freshLauncher()
+  return RomImporter.new(function() end, { launcher = true })
+end
+
+local realPrint = love.graphics.print
+local function drawAndCapture(imp)
+  local seen = {}
+  love.graphics.print = function(str, ...)
+    seen[#seen + 1] = tostring(str)
+    return realPrint(str, ...)
+  end
+  local ok, err = pcall(LauncherView.draw, imp)
+  love.graphics.print = realPrint
+  check(ok, "the frame draws: " .. tostring(err))
+  return table.concat(seen, "\n")
+end
+
+window(1280, 720)
+local imp = freshLauncher()
+local text = drawAndCapture(imp)
+check(text:find("Patch notes", 1, true) ~= nil,
+  "desktop footer prints Patch notes")
+
+window(360, 780)
+local phone = freshLauncher()
+check(drawAndCapture(phone):find("Patch notes", 1, true) ~= nil,
+  "portrait footer still prints Patch notes")
+
+do
+  local body, ver = PatchNotes.body({
+    state = function()
+      return { notes = "## Issues closed\n\n- #12 cart padding", latest = "1.4.2" }
+    end,
+  })
+  eq(body, "## Issues closed\n\n- #12 cart padding",
+    "PatchNotes prefers the updater's GitHub body")
+  eq(ver, "1.4.2", "PatchNotes carries the release version")
+end
+
+do
+  local body, ver = PatchNotes.body(nil)
+  check(type(body) == "string" and body:find("Issues closed", 1, true),
+    "without a check result PatchNotes uses the stashed iOS app-repo notes")
+  check(type(ver) == "string" and ver:find("^%d+%.%d+%.%d+$") ~= nil,
+    "stashed notes name a release version")
+end
+
+do
+  local f = assert(io.open("mobile/ios/app-repo.json", "rb"))
+  local list = PatchNotes.parseRepo(f:read("*a"))
+  f:close()
+  check(#list >= 2, "app-repo.json stashes more than one release")
+  local notes, ver = PatchNotes.fromRepo(list[2].version)
+  eq(ver, list[2].version, "fromRepo can pick a specific stashed version")
+  eq(notes, list[2].notes, "fromRepo returns that version's notes")
+end
+
+imp._appPatchNotes = true
+local modal = drawAndCapture(imp)
+check(modal:find("Patch notes", 1, true) ~= nil, "the modal titles itself")
+check(modal:find("Close", 1, true) ~= nil, "the modal can be closed")
+
+imp:keypressed("escape")
+eq(imp._appPatchNotes, nil, "Escape dismisses patch notes")
+
+T.finish("launcher patch notes")