feat(ui+legacy): F8-05 owner-feedback round 1 — inspector tweaks + parser

Owner-reported polish on top of #48, plus a legacy-parser gap that
prevented verifying stationed ship groups against a real .REP fixture.

UI:
- Production: drop the empty `(production)` placeholder option. Owned
  planets always produce something, so the primary select now opens on
  `industry` by default when `planet.production` is null/unknown,
  keeping the row inside the four real production kinds at all times.
- Production: lock the row to a single line (no flex-wrap) and strip
  border + padding from the ✓/✗ buttons so the apply/cancel icons read
  as glyphs and the row no longer breaks into two visual rows for
  Research / Ship contexts where both selects are present.
- Cargo routes: the placeholder option is now an `<option disabled>`
  styled like a section header (greyed, italic) and reads "manage
  routes" instead of "cargo routes". The wording shifts the intent
  from a section label to an action prompt.

Legacy parser:
- F8-05 (#48 п.32) "Stationed ship groups" couldn't be verified against
  the dg fixture because the legacy `<Race> Groups` blocks (outside
  battles) and the `Unidentified Groups` block were dropped by the
  parser — both are now wired up. Foreign group rows parse the
  `# T D W S C T Q D P M` columns and resolve the destination against
  the parsed planet tables (rows with an invisible destination drop,
  matching the existing local-group convention). The legacy row
  carries no origin / range columns, so foreign groups surface as
  stationed at the destination.
- Smoke tests on every fixture extended with `otherGroups` and
  `unidentifiedGroups` counts. New focused unit test
  `TestParseOtherAndUnidentifiedGroups` covers the column layout, the
  drop-on-unknown-destination rule, and the `X Y`-only unidentified
  rows.
- `tools/local-dev/reports/dg/KNNTS039.json` and
  `tools/local-dev/reports/dg/KNNTS041.json` regenerated so the
  synthetic-loader fixtures carry the new arrays.
- README updated: the two sections move out of "Skipped sections" into
  a "Foreign and unidentified groups" block; package doc-comment
  reflects the broader scope.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ui/frontend/tests/inspector-planet-production.test.ts

@@ -124,13 +124,15 @@ function getTarget(
 
 describe("planet inspector — production controls", () => {
 	test("renders the main select with localised options and ✓/✗ icons", () => {
+		// No production is set on the seeded planet → the select falls
+		// back to the documented `industry` default (an owned planet
+		// always produces something on the engine side, so there is no
+		// "(none)" placeholder option).
 		const ui = mountProduction(localPlanet({ number: 1 }));
 		const main = getMain(ui);
-		expect(main.value).toBe("");
+		expect(main.value).toBe("industry");
 		const labels = Array.from(main.options).map((o) => o.textContent?.trim());
-		// One placeholder + the four production kinds, in the documented order.
 		expect(labels).toEqual([
-			"(production)",
 			"industry",
 			"materials",
 			"research",
@@ -140,18 +142,20 @@ describe("planet inspector — production controls", () => {
 		expect(
 			ui.queryByTestId("inspector-planet-production-target"),
 		).toBeNull();
+		// The row is dirty against the seeded `production: null`, so
+		// both icon buttons are enabled — the player can either ✓ to
+		// confirm the default or ✗ to revert (back to industry again).
 		expect(
 			ui.getByTestId("inspector-planet-production-apply"),
-		).toBeDisabled();
+		).not.toBeDisabled();
 		expect(
 			ui.getByTestId("inspector-planet-production-cancel"),
-		).toBeDisabled();
+		).not.toBeDisabled();
 	});
 
-	test("Industry pick + ✓ emits a CAP setProductionType command", async () => {
+	test("Industry default + ✓ emits a CAP setProductionType command", async () => {
 		const ui = mountProduction(localPlanet({ number: 7 }));
-		const main = getMain(ui);
-		await fireEvent.change(main, { target: { value: "industry" } });
+		expect(getMain(ui).value).toBe("industry");
 		const apply = ui.getByTestId("inspector-planet-production-apply");
 		expect(apply).not.toBeDisabled();
 		await fireEvent.click(apply);
@@ -268,7 +272,7 @@ describe("planet inspector — production controls", () => {
 	test("active main derivation seeds the select from planet.production", () => {
 		const cases: ReadonlyArray<{
 			production: string | null;
-			expected: "" | "industry" | "materials" | "research" | "ship";
+			expected: "industry" | "materials" | "research" | "ship";
 		}> = [
 			{ production: "Capital", expected: "industry" },
 			{ production: "Material", expected: "materials" },
@@ -277,9 +281,11 @@ describe("planet inspector — production controls", () => {
 			{ production: "Shields", expected: "research" },
 			{ production: "Cargo", expected: "research" },
 			{ production: "Scout", expected: "ship" },
-			{ production: "-", expected: "" },
-			{ production: null, expected: "" },
-			{ production: "UnknownThing", expected: "" },
+			// Falls back to the documented `industry` default when the
+			// engine display string is missing or unrecognised.
+			{ production: "-", expected: "industry" },
+			{ production: null, expected: "industry" },
+			{ production: "UnknownThing", expected: "industry" },
 		];
 		for (const tc of cases) {
 			const ui = mountProduction(