feat(appstore): browse cached catalogs offline, drop Wi-Fi after use

Also mark Wordle 'present' tiles and keys with an inset ring, since gray
shades alone are hard to distinguish on e-ink.

apps/AppStore/main.lua

@@ -412,7 +412,7 @@ local APP_STATE_SUFFIX = { current = " (installed)", update = " (update)" }
 
 local function render()
     if screen == "repositories" then
-        drawList("Repositories", repositories, function(item) return item.name end)
+        drawList("Repositories", repositories, function(item) return item.name end, nil, "Refresh")
     elseif screen == "apps" then
         drawList("Apps", apps, function(line)
             local app = catalogEntry(line)
@@ -459,6 +459,7 @@ local function startInstall()
     collectgarbage("collect")
     if net.wifiStatus() == "connected" then
         local ok, result = install(detailApp)
+        net.wifiDisconnect()
         finishInstall(result)
     else
         pendingApp = detailApp
@@ -480,15 +481,26 @@ local function deleteApp()
     finishInstall(ok and (detailApp.id .. " deleted") or tostring(err))
 end
 
-local function openRepository()
+local function openRepository(forceDownload)
     detailApp = nil
     detailMessage = nil
     currentRepository = repositories[selected]
-    pendingRepository = currentRepository
     -- Shed The Stale Catalog Before The Radio - bringing up Wi-Fi allocates tens of KB, and the
     -- previous repository's entries are dead weight from the moment we leave the list.
     apps = {}
     collectgarbage("collect")
+
+    -- Browse Offline - Wi-Fi and TLS cost ~70 KB that stays resident for the whole session, and
+    -- scrolling a list at that heap level is what aborts the firmware. Serve the cached catalog
+    -- and bring the radio up only for an explicit refresh or an install.
+    if not forceDownload and fs.exists(currentRepository.downloadPath) and ensureCatalog() then
+        selected = 1
+        screen = "apps"
+        needsDraw = true
+        return
+    end
+
+    pendingRepository = currentRepository
     net.wifiConnect()
     screen = "connecting"
     needsDraw = true
@@ -524,11 +536,13 @@ function draw()
                     local app = pendingApp
                     pendingApp = nil
                     local ok, result = install(app)
+                    net.wifiDisconnect()
                     finishInstall(result)
                 else
                     local repository = pendingRepository
                     pendingRepository = nil
                     local ok, err = loadCatalog(repository)
+                    net.wifiDisconnect()
                     if ok then
                         selected = 1
                         screen = "apps"
@@ -553,7 +567,9 @@ function draw()
     elseif input.wasPressed("down") and (screen == "apps" or screen == "repositories") then
         moveSelection(1, screen == "apps" and apps or repositories)
     elseif input.wasPressed("right") then
-        if screen == "detail" and installState(detailApp.id, detailApp.manifestHash) ~= "none" then
+        if screen == "repositories" then
+            openRepository(true)
+        elseif screen == "detail" and installState(detailApp.id, detailApp.manifestHash) ~= "none" then
             detailMessage = nil
             screen = "confirmDelete"
             needsDraw = true

apps/AppStore/manifest.txt

@@ -1,3 +1,3 @@
 XTEINK-MANIFEST|1
-main.lua|22282|91eb39358d50a89ac9cc345fe0ef9d84ff595f7a0db60bae84127dac1368f3cc
+main.lua|22959|4278fc294944f3b7ef4000ec756668efebc695a89a933aa85fb3eb45a96844c0
 repositories.default.txt|108|70e442650788dd8d8632142ef3ff43a4aaee9855da89283facc72a8942e0a7df

apps/Wordle/main.lua

@@ -143,6 +143,8 @@ local function drawTile(letter, status, x, y, size)
 
     if status ~= nil then gui.fillRoundedRect(x, y, size, size, 5, fill) end
     gui.drawRoundedRect(x, y, size, size, 2, 5, COLOR_BLACK)
+    -- Present Marker - Gray shades alone are hard to tell apart on e-ink, so "in word, wrong spot" also gets an inset ring.
+    if status == 1 then gui.drawRoundedRect(x + 5, y + 5, size - 10, size - 10, 2, 3, COLOR_BLACK) end
     if letter ~= "" then
         centeredText(FONT_NOTOSANS_16, x, y + math.floor(size / 2) - 10, size, letter, textColor, STYLE_BOLD)
     end
@@ -188,6 +190,7 @@ local function drawKeyboard(width, height, top)
 
             gui.fillRoundedRect(x, y, keyWidth, keyHeight, 4, fill)
             gui.drawRoundedRect(x, y, keyWidth, keyHeight, 1, 4, COLOR_BLACK)
+            if status == 1 then gui.drawRoundedRect(x + 4, y + 4, keyWidth - 8, keyHeight - 8, 1, 3, COLOR_BLACK) end
             if rowIndex == cursorRow and columnIndex == cursorColumn then
                 gui.drawRoundedRect(x + 2, y + 2, keyWidth - 4, keyHeight - 4, 3, 3, textColor)
             end

apps/Wordle/manifest.txt

@@ -1,3 +1,3 @@
 XTEINK-MANIFEST|1
-main.lua|8025|cbdf0cc95761170f0948b76d40d404ce9ae8055c50ae656c7066531228e49a84
+main.lua|8371|df3f7d842dfa2e984644d6d8745f0bb02bfb9aef932c78e942131c10943d50bc
 words.txt|2814|057281f29400005492e9c891aeda0fbe9a3d3e6060304b71e7083ac02d9b3692

catalog.txt

@@ -1,6 +1,6 @@
 XTEINK-CATALOG|1
 2048|Slide and merge tiles to reach 2048|apps/2048/manifest.txt|97|7cc1eee488186698bf294a649fe850164af23e32aaee1cd86754555e282bce04
-AppStore|Install apps from public Xteink repositories|apps/AppStore/manifest.txt|192|1497912a4b9e58e95b4d8b0745a03c98ddea8ef9b47479bb47b5c89635c0b166
+AppStore|Install apps from public Xteink repositories|apps/AppStore/manifest.txt|192|f750574626ff2a5f8a4229ce6627ce98499690455f068443721f4d0e7fcc81c5
 BinaryKeyboard|Two-button recursive keyboard experiment|apps/BinaryKeyboard/manifest.txt|97|893867dba0ae2725caca1eb56375c98c4dd00d351134aa129698c51f97e25690
 HomeAssistant|Home Assistant status cards|apps/HomeAssistant/manifest.txt|177|b38ca49804444fd383a505ce9c51680ad9b7443950d682ca1b9ef3047bff98a5
-Wordle|Guess the five-letter word in six tries|apps/Wordle/manifest.txt|177|199fafdf0d0f6e77916befc011f6e8466c254867800e1d4a9e67e95a06d0366b
+Wordle|Guess the five-letter word in six tries|apps/Wordle/manifest.txt|177|0274df74ba99306f79698ab48c097f9f1d9ac8260f25e39db5b41f90c3f3f6a4