Polish README: simplify routing table, clarify deploy target, add .gitignore to files

- Use wildcard notation in routing table (claude-opus-*, claude-sonnet-*, etc.)
  with note about prefix matching and pointer to CONTEXT.md for full table
- Clarify that deploy.sh runs on mini-server, not the laptop
- Add .gitignore to the Files table

README.md

@@ -30,14 +30,15 @@ The proxy:
 
 | Client Sends | Provider | Rewrites To | Cost Model |
 |---|---|---|---|
-| `claude-opus-4-6` | Anthropic (api.anthropic.com) | *unchanged* | Pay-per-token |
-| `claude-sonnet-4-6` | Z.ai (api.z.ai) | `glm-4.7` | Flat rate subscription |
-| `claude-sonnet-4-5` | Z.ai | `glm-4.7` | Flat rate subscription |
-| `claude-haiku-4-5-*` | DeepSeek (api.deepseek.com) | `deepseek-chat` | Cheap per-token |
+| `claude-opus-*` | Anthropic (api.anthropic.com) | *unchanged* | Pay-per-token |
+| `claude-sonnet-*` | Z.ai (api.z.ai) | `glm-4.7` | Flat rate subscription |
+| `claude-haiku-*` | DeepSeek (api.deepseek.com) | `deepseek-chat` | Cheap per-token |
 | `glm-4.7` | Z.ai | *unchanged* | Flat rate subscription |
 | `deepseek-chat` | DeepSeek | *unchanged* | Cheap per-token |
 | *anything else* | Z.ai | `glm-4.7` | Flat rate subscription |
 
+The proxy matches exact model names first, then tries prefix matching (so dated variants like `claude-sonnet-4-5-20250929` are handled automatically). See `CONTEXT.md` for the full routing table with every explicit entry.
+
 Z.ai and DeepSeek both expose Anthropic-compatible APIs natively, so the proxy only needs to rewrite the model name and auth headers — no response translation required.
 
 ## Setup
@@ -87,9 +88,13 @@ npm run dev
 
 ### Deploy as a Service
 
-The included `deploy.sh` script validates your config, tests the proxy, and installs a systemd service:
+On mini-server (where the proxy runs), the `deploy.sh` script validates your config, tests the proxy, and installs a systemd service:
 
 ```bash
+# SSH into mini-server first
+ssh mini-server
+cd ~/ai-proxy
+
 chmod +x deploy.sh
 ./deploy.sh
 ```
@@ -258,6 +263,7 @@ scp global-claude-md/CLAUDE.md mini-server:~/.claude/CLAUDE.md
 | `proxy.mjs` | Main proxy server — zero npm dependencies, Node.js 18+ built-ins only |
 | `config.json` | API keys and auth token (**gitignored**, never commit) |
 | `config.example.json` | Template config — copy to `config.json` and fill in |
+| `.gitignore` | Excludes `config.json`, `node_modules/`, and `*.log` |
 | `ein-ai-proxy.service` | Systemd unit file for running as a service |
 | `deploy.sh` | Deployment script — validates config, tests proxy, installs service |
 | `sync-context.sh` | Syncs global AI context to Claude Code and Roo Code |