Add lib target to poc-agent, make poc-memory depend on it

Split poc-agent into lib + bin so its API client, types, and tool
dispatch can be imported by poc-memory. This is the foundation for
replacing claude CLI subprocess calls with direct API calls to
vllm/OpenAI-compatible endpoints.

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

Cargo.lock

@@ -2712,11 +2712,11 @@ dependencies = [
  "memmap2",
  "paste",
  "peg",
+ "poc-agent",
  "ratatui 0.29.0",
  "rayon",
  "redb",
  "regex",
- "reqwest",
  "rkyv",
  "serde",
  "serde_json",
@@ -3289,9 +3289,7 @@ dependencies = [
  "base64",
  "bytes",
  "encoding_rs",
- "futures-channel",
  "futures-core",
- "futures-util",
  "h2",
  "http",
  "http-body",

poc-agent/Cargo.toml

@@ -4,6 +4,14 @@ version.workspace = true
 edition = "2024"
 description = "Substrate-independent AI agent framework"
 
+[lib]
+name = "poc_agent"
+path = "src/lib.rs"
+
+[[bin]]
+name = "poc-agent"
+path = "src/main.rs"
+
 [dependencies]
 reqwest = { version = "0.12", features = ["json"] }
 serde = { version = "1", features = ["derive"] }

poc-agent/src/lib.rs

@@ -0,0 +1,11 @@
+// poc-agent library — reusable components for LLM agent work
+//
+// The binary (main.rs) is the full interactive agent with TUI.
+// This lib exposes the building blocks that other crates (poc-memory)
+// can use for their own agent loops.
+
+pub mod api;
+pub mod journal;
+pub mod types;
+pub mod tools;
+pub mod ui_channel;

poc-memory/Cargo.toml

@@ -21,7 +21,6 @@ peg = "0.8"
 paste = "1"
 jobkit = { git = "https://evilpiepirate.org/git/jobkit.git/" }
 jobkit-daemon = { git = "https://evilpiepirate.org/git/jobkit-daemon.git/" }
-reqwest = { version = "0.12", features = ["blocking", "json"] }
 poc-agent = { path = "../poc-agent" }
 redb = "2"
 log = "0.4"