docs(turn-loop): fix stale context_window_tokens module path + on-boot files dir

Verified against hive-agent/src/harness_state.rs (context_window_tokens
lives there, only imported into events.rs) and hive-agent/src/paths.rs
(config_dir() defaults to /run/hive-config, deliberately separate from
/run/hive/ which holds the per-agent socket).

docs/turn-loop/claude-invocation.md

@@ -51,7 +51,7 @@ survives restart; override path: `HYPERHIVE_MODEL_FILE` env var
 for tests.
 
 Context-window size is looked up per-model via
-`events::context_window_tokens(model)`. Resolution order (first
+`harness_state::context_window_tokens(model)`. Resolution order (first
 match wins):
 
 1. `HIVE_CONTEXT_WINDOW_TOKENS_<KEY>` env var, where `KEY`
@@ -129,7 +129,7 @@ window with two triggers baked into its `run`:
 The **when** is a `hive_claude::CompactionPolicy` injected by the harness:
 `turn::make_session` builds a `PercentPolicy` that compacts once the
 model-reported context fill reaches `HIVE_COMPACT_WATERMARK_PERCENT`
-(default **75%**), falling back to `events::context_window_tokens(model)`
+(default **75%**), falling back to `harness_state::context_window_tokens(model)`
 for the window on turns the model didn't report one. `0` disables proactive
 compaction (the reactive path always applies). The proactive path is
 best-effort — a failed checkpoint or `/compact` never fails the turn that
@@ -195,8 +195,11 @@ next turn picks it up like any other inbox message.
 
 ## On-boot files
 
-`hive-agent`'s `turn` module writes two files next to the per-agent
-socket at `/run/hive/` once at startup:
+`hive-agent`'s `turn` module writes two files into its own per-service
+runtime dir, `/run/hive-config/` (`RuntimeDirectory = "hive-config"`,
+deliberately separate from `/run/hive/`, the host-owned dir holding the
+per-agent socket — so the harness owns this write surface and nothing
+needs to `chown` a bind mount), once at startup:
 
 - `claude-mcp-config.json` — points claude at the persistent
   `hive-mcp-http` daemon (`http://127.0.0.1:{port}/mcp`, port from