fix(ai): les clics ne font plus sauter la conversation au bas (BUG-059); tableaux markdown corrects dans create_pdf (#92)

tests/frontend/ai.test.mjs

@@ -302,6 +302,25 @@ async function main() {
       }
     });
 
+    await test("isScrollbarPress: content clicks never unpin, scrollbar drags do (BUG-059)", () => {
+      const { isScrollbarPress } = bookslmMod;
+      const container = document.createElement("div");
+      container.getBoundingClientRect = () => ({
+        left: 0, right: 800, top: 0, bottom: 600, width: 800, height: 600,
+      });
+      const link = document.createElement("a");
+      // Click on a file link / steps toggle → must NOT unpin (the thread
+      // would otherwise jump to the bottom when the padding is cleared).
+      assert.equal(isScrollbarPress(link, 790, container), false);
+      // Click on blank content area → must NOT unpin either.
+      assert.equal(isScrollbarPress(container, 300, container), false);
+      // Dragging the vertical scrollbar: target is the container itself and
+      // the press lands in the right-edge gutter → unpin allowed.
+      assert.equal(isScrollbarPress(container, 792, container), true);
+      // Defensive: no container / no geometry → never unpin.
+      assert.equal(isScrollbarPress(link, 790, null), false);
+    });
+
     await test("the placeholder render keeps the anchor (no scroll reset before first token)", async () => {
       // Regression: the assistant placeholder used to be rendered while
       // `_isLoading` was still false, so it took the "restore previous

tests/test_document_tools.py

@@ -150,6 +150,43 @@ class TestCreatePdf:
         }, confirm=True)
         assert (vault / "big.pdf").exists()
 
+    def test_markdown_tables_go_through_the_export_pipeline(self, vault, monkeypatch):
+        # The document-page pipeline (mistune tables + WeasyPrint) must be
+        # used when available: capture the HTML handed to the PDF generator.
+        import sys
+        import types
+
+        captured = {}
+        fake = types.ModuleType("backend.pdf_export")
+
+        def fake_build(html, title, **kw):
+            captured["html"] = html
+            captured["title"] = title
+            return "<html>" + html + "</html>"
+
+        fake.build_pdf_html = fake_build
+        fake.generate_pdf = lambda html, title=None, **kw: b"%PDF-fake"
+        monkeypatch.setitem(sys.modules, "backend.pdf_export", fake)
+        out = call_tool("create_pdf", _ctx(), {
+            "vault": "Vault", "path": "table.pdf", "title": "Rapport",
+            "content": "# T\n\n| a | b |\n|---|---|\n| 1 | 2 |",
+        }, confirm=True)
+        assert out.ok
+        assert "<table>" in captured["html"]
+        assert captured["title"] == "Rapport"
+        assert (vault / "table.pdf").read_bytes() == b"%PDF-fake"
+
+    def test_reportlab_fallback_when_weasyprint_missing(self, vault, monkeypatch):
+        # sys.modules[name] = None makes `from backend.pdf_export import …`
+        # raise ImportError → the simplified renderer must take over.
+        import sys
+
+        monkeypatch.setitem(sys.modules, "backend.pdf_export", None)
+        call_tool("create_pdf", _ctx(), {
+            "vault": "Vault", "path": "fb.pdf", "title": "T", "content": "# H\ntexte",
+        }, confirm=True)
+        assert (vault / "fb.pdf").read_bytes().startswith(b"%PDF")
+
 
 class TestVaultSafety:
     def test_path_outside_vault_rejected(self, vault):