chore: reorganize repo — legacy packages to legacy-packages/, templates to examples/

- Move 15 old workflow-* packages to legacy-packages/ (inactive, preserved for reference)
- Rename templates/ → examples/ for clarity
- Rewrite docs/architecture.md to reflect current uwf architecture
- Active packages remain in packages/: cli-uwf, uwf-agent-hermes, uwf-agent-kit, uwf-moderator, uwf-protocol, workflow-util

小橘 🍊（NEKO Team）

packages/workflow-agent-hermes/README.md

@@ -1,34 +0,0 @@
-# @uncaged/workflow-agent-hermes
-
-`AgentFn` adapter that runs the `hermes` CLI in non-interactive `chat` mode (Nerve-style flags: `-q`, `--yolo`, `--quiet`, bounded `--max-turns`).
-
-The agent composes the same thread-aware prompt as other CLI-backed agents via `buildAgentPrompt` from `@uncaged/workflow-util-agent`, then spawns `hermes` and returns stdout on success.
-
-## Install
-
-```bash
-bun add @uncaged/workflow-agent-hermes @uncaged/workflow-runtime @uncaged/workflow-util-agent
-```
-
-In this monorepo: use `workspace:*` for `@uncaged/workflow-agent-hermes`, `@uncaged/workflow-runtime`, and `@uncaged/workflow-util-agent`.
-
-## Usage
-
-```typescript
-import { createHermesAgent } from "@uncaged/workflow-agent-hermes";
-
-const agent = createHermesAgent({
-  model: "your-model", // or null to omit --model
-  timeout: 600_000, // ms, or null for no timeout
-});
-```
-
-## API overview
-
-| Export | Description |
-|--------|-------------|
-| `createHermesAgent(config)` | Returns `AgentFn` wrapping `hermes chat -q ...` |
-| `HermesAgentConfig` | `model`, `timeout` |
-| `validateHermesAgentConfig` | Config validation result |
-
-Requires `hermes` on `PATH` at runtime.