test(autotest): fix 2 remaining CI flakes (dep-viewer JDK label, gradle-java25 completion)

- java-dependency-viewer: drop verify: on verify-jdk step. The wiki uses
  'JDK Libraries' as a category label, but the actual tree node label is
  'JRE System Library' (with child modules like java.base). The
  deterministic 'expandTreeItem JRE System Library' action is the ground
  truth (it fails fast if the node doesn't exist); the verify: text was
  causing LLM downgrades because BEFORE/AFTER screenshots correctly
  showed JRE System Library expansion but the LLM expected a separate
  'JDK Libraries' grouping that doesn't exist in current vscode-java.

- java-gradle-java25: drop verify: on verify-completion (same flake as
  the other 4 completion plans fixed in the previous commit — Gradle
  java25 plan was missed). Add waitBefore: 5 so the popup has time to
  render before screenshot capture.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Copilot

test-plans/java-dependency-viewer.yaml

@@ -58,6 +58,9 @@ steps:
     timeout: 15
 
   # ── Verify JDK Libraries node ───────────────────────────
+  # Drop `verify:` — the deterministic `expandTreeItem JRE System Library`
+  # is the ground truth (succeeds only if the node exists). The wiki uses
+  # "JDK Libraries" as a category name but the actual tree label is
+  # "JRE System Library", which can confuse the LLM verifier.
   - id: "verify-jdk"
     action: "expandTreeItem JRE System Library"
-    verify: "JDK Libraries node visible and expandable"

test-plans/java-gradle-java25.yaml

@@ -45,11 +45,13 @@ steps:
     timeout: 15
 
   # ── Step 3: Verify completion ───────────────────────────
+  # Drop `verify:` — completion popup timing flakes on CI (transient
+  # "Loading…" indicator). verifyCompletion.notEmpty is the ground truth.
   - id: "verify-completion"
     action: "triggerCompletionAt endOfMethod"
-    verify: "Code completion works at end of method body"
     verifyCompletion:
       notEmpty: true
+    waitBefore: 5
 
   # ── Step 4: Verify editing ────────────────────────────────
   - id: "goto-line"