Deploy Poimen Memory K8s cluster with ArgoCD tracking (M2.2, M3.5-M3.7)

tasks/M1.1-llm-chat-client.md

@@ -4,7 +4,7 @@
 |---|---|
 | Phase | M1 — Gated loop at L1 |
 | Size | M — 1–3 days |
-| Status | ⬜ Not started |
+| Status | ✅ Done |
 | Flags | — |
 | Spec | inlined below |
 | Blocks | M0.1 |
@@ -14,6 +14,69 @@
 Talk to the homelab gateway, with the two non-obvious details that cost a day to
 find already baked in.
 
+## Files
+
+| Action | Path |
+|---|---|
+| Create | `crates/mem-llm/src/chat.rs` — `ChatClient`, `Completion`, `Usage` |
+| Replace | `crates/mem-llm/src/lib.rs` — replace `pub mod placeholder {}` with `pub mod chat;` + re-exports |
+| Create | `tests/it_chat_client.rs` — integration tests (workspace root, matches existing convention) |
+| Modify | `Cargo.toml` root — add `wiremock = "0.6"` to `[dev-dependencies]` |
+
+## Dependencies
+
+| Crate | Where | Already present? |
+|---|---|---|
+| `reqwest` (json feature) | `crates/mem-llm/Cargo.toml` | ✅ yes |
+| `serde`, `serde_json` | `crates/mem-llm/Cargo.toml` | ✅ yes |
+| `tokio` | `crates/mem-llm/Cargo.toml` | ✅ yes |
+| `anyhow`, `thiserror` | `crates/mem-llm/Cargo.toml` | ✅ yes |
+| `wiremock = "0.6"` | root `Cargo.toml` `[dev-dependencies]` | ❌ add |
+
+## Existing code
+
+- `crates/mem-llm/src/lib.rs` is an empty placeholder — replace entirely
+- No existing HTTP client code to reuse; build from scratch
+- `crates/mem-core/src/lesson.rs` has an unrelated events JSONL writer — ignore it here
+
+## API shape
+
+```http
+POST https://api.riotpiao.com/v1/qwen/chat/completions
+
+Headers:
+  apikey: <value of MEM_API_KEY env var>
+  Content-Type: application/json
+
+Body (note: NO "tools" key — not even an empty array):
+{
+  "model": "qwen2.5:3b-instruct",
+  "messages": [
+    {"role": "system", "content": "<system prompt>"},
+    {"role": "user", "content": "<user prompt>"}
+  ],
+  "max_tokens": 2048
+}
+
+Response 200:
+{
+  "choices": [
+    {"message": {"role": "assistant", "content": "<model output>"}}
+  ],
+  "usage": {
+    "prompt_tokens": 1234,
+    "completion_tokens": 567,
+    "total_tokens": 1801
+  }
+}
+
+Response 401 (wrong auth header):
+{"message": "Unauthorized"}
+
+Response 400 (body too large or malformed):
+{"error": {"message": "[] is too short - 'messages'"}}
+```
+
 ## Facts (inlined — no spec read needed)
 
 ```
@@ -84,7 +147,7 @@ live gateway.
 6. `a6_live_smoke` — `#[ignore]`; real gateway, `qwen2.5:3b-instruct`, prompt
    "reply with exactly: pong", assert the text contains `pong`.
 
-**Command:** `cargo test -p mem-llm chat_client` (add `-- --ignored` for a6)
+**Command:** `cargo test --test it_chat_client` (add `-- --ignored` for a6)
 
 **False pass:**
 - Testing only against the mock. The mock accepts whatever header you send it;