fix(app): turn the APK download back on for v0.7.0

platform.json's androidApk.serviceable goes to true. It was false because
v0.5.0's build did not work. v0.7.0's released APK (SHA256 matches
SHA256SUMS) was installed on an Android 16 emulator, connected to the
public demo and read its Rust servers, so /app/ links the download again.

The comment beside the flag now says when it was last checked and to set
it back to false when `asset` moves to a release nobody has run. PLAN.md
D29 gets a dated note.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

PLAN.md

@@ -956,6 +956,8 @@ deliberately so — no fetch can tell whether an APK runs. `checkFacts.mjs` asse
 still exist and that `minSdk` still says what "Android 10 or newer" claims, so the link is correct
 the moment a working build flips the boolean. The panel is not removed while the link is off: a page
 that omitted sideloading would read, to somebody who knows the APK exists, as a page hiding it.
+*(2026-10-31: the link is back on. Android `v0.7.0`'s APK was installed on an Android 16 emulator,
+connected to the public demo and read its Rust servers, so `serviceable` is `true`.)*
 
 **Three mechanisms this phase added that the plan did not anticipate.**
 

src/data/platform.json

@@ -120,17 +120,18 @@
     "",
     "`serviceable` is the one value here with no authority to check it against, and it is",
     "deliberately manual. It answers a question no API can: does the published build",
-    "actually work. The org lead reports v0.5.0's does not, so the download block renders a",
-    "'being replaced' state instead of a link, and flipping this to true is the single edit",
-    "that turns the link back on once a working build is released. A check cannot run an",
-    "APK; a person can, and this is where they record that they did."
+    "actually work. v0.5.0's did not, and while false the download block renders a 'being",
+    "replaced' state instead of a link. A check cannot run an APK; a person can, and this",
+    "is where they record that they did. v0.7.0's was installed on an Android 16 emulator",
+    "on 2026-10-31, connected to the public demo and read its Rust servers: true.",
+    "When `asset` moves to a new release, set this back to false until someone has run it."
   ],
   "androidApk": {
     "asset": "runic-gateway-0.7.0.apk",
     "checksums": "SHA256SUMS",
     "minSdk": 29,
     "minAndroid": "10",
-    "serviceable": false
+    "serviceable": true
   },
 
   "gitea": {