fix(#70): rejectAll reverts tweaked proposals via the tracked span; skips are counted and reported

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

test/e2e/suite/f12InlineDiff.test.ts

@@ -293,6 +293,33 @@ suite("F12 inline diff — #70 reject after interior edit (INV-5)", () => {
     // plain record-only reject.
     assert.strictEqual(p.rejectById(docKey, id!), true);
   });
+
+  // rejectAll must revert a tweaked (orphaned-anchor) proposal via the same
+  // tracked-span fallback, ordered descending by that span so earlier reverts
+  // never shift later ones — and must count what it could not revert.
+  test("rejectAll reverts tweaked proposals via the tracked span and reports skips", async () => {
+    const { doc } = await freshDoc("docs/s70-rejall-tweak.md", "# T\n\nOne aaa.\n\nTwo bbb.\n");
+    const api = await getApi();
+    const p = api.proposalController;
+    const editFlow = api.editFlow;
+    editFlow.setEditTurnForTest(async () => ({ replacement: "# T\n\nOne AAA.\n\nTwo BBB.\n", model: "m", sessionId: "s" }));
+    const ids = await editFlow.runEditAndPropose(doc, { kind: "document" }, "up");
+    await settle();
+    for (const id of ids) await p.optimisticApply(doc, id);
+    await settle();
+    // Tweak INSIDE the first applied block → its exact anchor orphans.
+    const at = doc.getText().indexOf("AAA");
+    const we = new vscode.WorkspaceEdit();
+    we.replace(doc.uri, new vscode.Range(doc.positionAt(at), doc.positionAt(at + 3)), "AAAZ");
+    assert.ok(await vscode.workspace.applyEdit(we), "interior tweak applied");
+    await settle();
+    const { reverted, skipped } = await p.rejectAll(doc);
+    await settle();
+    assert.strictEqual(reverted, ids.length, "ALL proposals reverted, tweaked one included");
+    assert.strictEqual(skipped, 0, "nothing skipped");
+    assert.strictEqual(doc.getText(), "# T\n\nOne aaa.\n\nTwo bbb.\n", "document fully restored (INV-5)");
+    assert.strictEqual(p.listProposals(doc).length, 0, "all cleared");
+  });
 });
 
 // Reload-safety: a proposal that was optimistically applied in a PRIOR session