docs: replace stale 'android' name mentions with 'iris'

The plugin is named 'iris' (IrisAdapter, IRIS_HOME_CHANNEL, label Iris),
but several docs still referred to it as the android platform/plugin and
to the product as 'the Android app'. Rename name-mentions to iris/IRIS
and product-mentions to 'Iris app'; keep legitimate OS references
(androidApp, Android SDK, Android 10, androidx, test_android.py, ...).

Also includes pi-lens markdown-lint autofixes (table spacing, trailing
newlines) in the touched files.

docs/18-code-review.md

@@ -1,7 +1,7 @@
 # 18 — Code Review & Lint/LSP Cleanup (alpha → stable)
 
-Comprehensive review of all three components — **gateway plugin**, **Android
-app**, and **Desktop app** — performed to take the project from alpha to a
+Comprehensive review of all three components — **gateway plugin**, **Iris app
+(Android)**, and **Desktop app** — performed to take the project from alpha to a
 clean, stable baseline. Each section records what was found, what was fixed,
 how it was verified, and what was deliberately left (with rationale).
 
@@ -50,7 +50,7 @@ findings. Categories:
   `hermes_cli.config`, but those live in `hermes_cli.cli_output`; it also imported
   a `print_code` that does not exist in hermes at all. The whole import block
   raised `ImportError`, which the surrounding `try/except` swallowed, so
-  `hermes gateway setup` for the android platform **always bailed out early** with
+  `hermes gateway setup` for the iris platform **always bailed out early** with
   "setup helpers unavailable" and never generated a token or prompted for
   host/port. Fixed by importing the print helpers from `hermes_cli.cli_output`,
   the env helpers from `hermes_cli.config`, and dropping the non-existent
@@ -127,9 +127,9 @@ rule set (`E W F I UP B SIM PL RET C4`) and `line-length = 100`. Changes:
 
 ---
 
-## 18.2 Android app (`app/androidApp` + `app/shared`)
+## 18.2 Iris app — Android (`app/androidApp` + `app/shared`)
 
-The Android and Desktop apps share the `:shared` KMP module (`commonMain` +
+The Iris Android and Desktop apps share the `:shared` KMP module (`commonMain` +
 `jvmMain`), so most Kotlin code is covered here and in 18.3.
 
 ### 18.2.1 Findings (before)