ui: rename learner-facing 'knowledge context' copy to 'graph context' (components + render tests)

tests/render-activity-dock.test.tsx

@@ -152,14 +152,14 @@ describe("activity section render", () => {
 		assert.match(html, /activity-total-cost[^>]*>—</);
 	});
 
-	it("renders a graph-context job as 'Knowledge context' — the dock's fourth kind", () => {
+	it("renders a graph-context job as 'Graph context' — the dock's fourth kind", () => {
 		const html = renderToStaticMarkup(
 			<ActivitySection
 				feed={{ jobs: [job({ id: "jctx", kind: "graph-context", activity: "selecting propositions", title: "Water cycle" })], extractions: [] }}
 			/>,
 		);
 		assert.match(html, /data-testid="activity-blob-job"/);
-		assert.match(html, /Knowledge context/);
+		assert.match(html, /Graph context/);
 		assert.match(html, /selecting propositions/);
 		assert.match(html, /data-testid="activity-abort"/, "END kills the injection like any job");
 	});

tests/render-graph-context-marker.test.tsx

@@ -27,7 +27,7 @@ function markerMessage(): TeacherUIMessage {
 describe("GraphContextMarker", () => {
 	it("renders the quiet summary line with token + proposition counts", () => {
 		const html = renderToStaticMarkup(<GraphContextMarker message={markerMessage()} />);
-		assert.ok(html.includes("Knowledge context — ~537"));
+		assert.ok(html.includes("Graph context — ~537"));
 		assert.ok(html.includes("3 propositions"));
 		assert.ok(html.includes('data-testid="graph-context"'));
 		assert.ok(html.includes("<button"), "the line is clickable");
@@ -37,8 +37,8 @@ describe("GraphContextMarker", () => {
 		const html = renderToStaticMarkup(
 			<GraphContextMarker message={{ parts: [{ type: "data-graph-context", data: { nope: true } }] }} />,
 		);
-		assert.ok(html.includes("Knowledge context</"));
-		assert.ok(!html.includes("Knowledge context —"), "no counts on a malformed part");
+		assert.ok(html.includes("Graph context</"));
+		assert.ok(!html.includes("Graph context —"), "no counts on a malformed part");
 	});
 });
 

tests/render-new-session.test.tsx

@@ -109,7 +109,7 @@ describe("DraftShell — the sessionless surface", () => {
 		// The readout: "tok" abbreviated, but the FULL number (owner, 2026-09-15:
 		// no k-rounding — 1024 reads as 1024).
 		assert.ok(html.includes("1024 tok"), "the readout shows the default budget, not 0 — default is ON");
-		assert.ok(html.includes("Knowledge context"), "the control is labeled");
+		assert.ok(html.includes("Graph context"), "the control is labeled");
 		// Absent settings render the default — never 'off'.
 		assert.ok(!html.includes(">off<"));
 	});