chore: rebrand to GSD-redux/get-shit-done-redux

Mirror of code, issues, and PRs from the upstream gsd-build/get-shit-done,
which appears compromised or abandoned (maintainer unreachable since
2026-04-01; $GSD token linked to rug-pull).

- Adds rebrand notice block at top of English README
- Removes $GSD token badge and @gsd_foundation X badge (keeps Discord)
- Renames npm packages: get-shit-done-cc -> get-shit-done-redux,
  @gsd-build/sdk -> @gsd-redux/sdk
- Updates all repo URLs across docs, workflows, package.json, bin/
- Updates ci@gsd-build -> ci@gsd-redux in workflow git identities
- Leaves CHANGELOG and .changeset/* alone (historical, time-stamped)

sdk/README.md

@@ -1,17 +1,17 @@
-# @gsd-build/sdk
+# @gsd-redux/sdk
 
 TypeScript SDK for **Get Shit Done**: deterministic query/mutation handlers, plan execution, and event-stream telemetry so agents focus on judgment, not shell plumbing.
 
 ## Install
 
 ```bash
-npm install @gsd-build/sdk
+npm install @gsd-redux/sdk
 ```
 
 ## Quickstart — programmatic
 
 ```typescript
-import { GSD, createRegistry } from '@gsd-build/sdk';
+import { GSD, createRegistry } from '@gsd-redux/sdk';
 
 const gsd = new GSD({ projectDir: process.cwd(), sessionId: 'my-run' });
 const tools = gsd.createTools();
@@ -25,8 +25,8 @@ const { data } = await registry.dispatch('state.json', [], process.cwd());
 From a project that depends on this package, **invoke the CLI with Node** (recommended in CI and local dev):
 
 ```bash
-node ./node_modules/@gsd-build/sdk/dist/cli.js query state.json
-node ./node_modules/@gsd-build/sdk/dist/cli.js query roadmap.analyze
+node ./node_modules/@gsd-redux/sdk/dist/cli.js query state.json
+node ./node_modules/@gsd-redux/sdk/dist/cli.js query roadmap.analyze
 ```
 
 If no native handler is registered for a command, the CLI can transparently shell out to `get-shit-done/bin/gsd-tools.cjs` (see stderr warning), unless `GSD_QUERY_FALLBACK=off`.