chore(cli-v2): un-ignore CLI source tree for binary release workflow

The CLI source (242 files, ~14k lines) was gitignored during the
earlier cli→cli-v2 reorg so only the published npm package carried it.
That blocks the GitHub Actions release workflow (release-cli.yml),
which clones the repo fresh on each runner and needs the source to
compile binaries via `bun build --compile`.

Moves the gitignore from root-level to `apps/cli-v2/.gitignore` with
only the usual build artefacts excluded (node_modules, dist, .turbo,
.cache). Source is now in git at apps/cli-v2/src/.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/cli-v2/src/templates/index.ts

@@ -0,0 +1,11 @@
+export interface MeshTemplate { name: string; description: string; groups: Array<{ name: string; roles: string[] }>; stateKeys: Record<string, string>; suggestedRoles: string[]; systemPromptHint: string; }
+
+import { template as devTeam } from "./dev-team.js";
+import { template as research } from "./research.js";
+import { template as opsIncident } from "./ops-incident.js";
+import { template as simulation } from "./simulation.js";
+import { template as personal } from "./personal.js";
+
+export const TEMPLATES: Record<string, MeshTemplate> = { "dev-team": devTeam, research, "ops-incident": opsIncident, simulation, personal };
+export function listTemplates(): MeshTemplate[] { return Object.values(TEMPLATES); }
+export function getTemplate(name: string): MeshTemplate | undefined { return TEMPLATES[name]; }