Node schema pivot: short name (label) + full-precision statement; description dropped

With real extracted data, full-sentence statements as canvas labels proved
unworkable: 10-line label blocks, illegible overprint clusters, bottom-edge
clipping. Per the user's 2026-09-08 decision:

- GraphNode/ExtractedProposition gain `name` — a very short, glanceable
  label (glossary-headword style: "Will to power"), presentational only:
  not unique, not identity, never precise. Set at creation; link-appends
  never change it (first line defines; labels stay stable across sessions).
- `statement` keeps its full precision and becomes the identity anchor;
  the detail card shows it under the name. `description` is dropped.
- Extractor coins the name (freshest session context); auditor carries it
  through on create, rewording only clearly unglanceable names; linked
  propositions keep the existing node's name.
- Renderer: canvas label = name; search matches name + statement;
  detail card = name (bold) + statement (muted).
- Store guard requires name (pre-pivot node lines are skipped as legacy);
  vision.md node-schema bullet + amendments table updated (2026-09-08).

tests/graph.test.ts

@@ -167,8 +167,8 @@ function fixtureAudit(): AuditResult {
 		propositions: [
 			{
 				id: "p1",
+				name: "Alpha",
 				statement: "Alpha intuition",
-				description: "Alpha intuition, elaborated: what alpha means and how it behaves in practice.",
 				aliases: ["alpha feel"],
 				messages: ["a1", "a3"],
 				evidence: ["fixture evidence"],
@@ -176,16 +176,16 @@ function fixtureAudit(): AuditResult {
 			},
 			{
 				id: "p2",
+				name: "Beta rule",
 				statement: "Beta rule",
-				description: "The beta rule and when it applies.",
 				aliases: [],
 				messages: ["a4"],
 				evidence: ["fixture evidence"],
 			},
 			{
 				id: "p3",
+				name: "Gamma",
 				statement: "Gamma application",
-				description: "Applying the whole framework to gamma cases.",
 				aliases: [],
 				messages: ["a5"],
 				evidence: ["fixture evidence"],
@@ -241,7 +241,7 @@ describe("the merger (mergeFindings)", () => {
 		const idByStatement = new Map(graph.nodes.map((n) => [n.statement, n.id]));
 		for (const node of graph.nodes) {
 			assert.match(node.id, /^n_/);
-			assert.ok(node.description.length > 0, "description is required");
+			assert.ok(node.name.length > 0, "name is required");
 			assert.equal("kind" in node, false, "no kind field");
 			assert.ok(Array.isArray(node.provenance), "message-granular provenance");
 		}
@@ -333,8 +333,8 @@ describe("the merger (mergeFindings)", () => {
 				propositions: [
 					{
 						id: "q1",
+						name: "Alpha",
 						statement: "Alpha feel", // a DIFFERENT phrasing — identity is the verdict, not strings
-						description: "The intuitive grasp of alpha.",
 						aliases: ["alpha intuition"],
 						messages: ["a1"],
 						evidence: ["fixture evidence"],
@@ -390,8 +390,8 @@ describe("the merger (mergeFindings)", () => {
 				propositions: [
 					{
 						id: "r1",
+						name: "Alpha",
 						statement: "Alpha intuition", // IDENTICAL to the existing node's statement
-						description: "Same words, no verdict.",
 						aliases: [],
 						messages: ["u1"],
 						evidence: ["fixture evidence"],
@@ -473,22 +473,24 @@ describe("graph ledger store", () => {
 	it("round-trips lines and skips corrupt / foreign-shaped lines (strict reads)", () => {
 		const node = {
 			id: "n_storetest",
-			statement: "Store test",
-			description: "Store test, elaborated.",
+			name: "Store test",
+			statement: "Store test, elaborated.",
 			aliases: [] as string[],
 			createdAt: "2026-08-22T00:00:00.000Z",
 			provenance: [{ chatId: "chat_c", messageId: "m1" }],
 		};
 		graphStore.appendNode(node);
-		// A torn append and a legacy pre-redesign node (old schema) — both skipped.
+		// A torn append and a pre-name-pivot node (old schema: description, no
+		// name) — both skipped by the strict guard.
 		fs.appendFileSync(
 			LEDGER_FILES.nodes,
-			`{not json}\n${JSON.stringify({ id: "legacy", statement: "Legacy shape", kind: "truth", name: "Legacy", createdAt: "2026-08-22T00:00:00.000Z" })}\n`,
+			`{not json}\n${JSON.stringify({ id: "legacy", statement: "Legacy shape", description: "Old schema.", aliases: [], createdAt: "2026-08-22T00:00:00.000Z", provenance: [] })}\n`,
 			"utf-8",
 		);
 		const nodes = graphStore.readNodes().filter((n) => n.id === "n_storetest" || n.id === "legacy");
 		assert.equal(nodes.length, 1);
-		assert.equal(nodes[0]!.statement, "Store test");
+		assert.equal(nodes[0]!.name, "Store test");
+		assert.equal(nodes[0]!.statement, "Store test, elaborated.");
 		assert.deepEqual(nodes[0]!.provenance, [{ chatId: "chat_c", messageId: "m1" }]);
 	});
 
@@ -496,8 +498,8 @@ describe("graph ledger store", () => {
 		const line = (msgId: string) =>
 			JSON.stringify({
 				id: "n_linktest",
+				name: "Link test",
 				statement: `Phrasing ${msgId}`,
-				description: "Elaboration.",
 				aliases: [],
 				createdAt: "2026-08-22T00:00:00.000Z",
 				provenance: [{ chatId: "chat_c", messageId: msgId }],