feat: add config.example.json template and update AGENTS.md with new config path

AGENTS.md

@@ -10,8 +10,7 @@
 
 - Config load order: `~/.picobot/config.json` then fallback to `./config.json` (`src/config/mod.rs:237-267`)
 - `.env` (cwd) is loaded with a custom parser, not via dotenv crate; env var placeholders `<VAR_NAME>` in config JSON are substituted
-- Config example: `config.example.json`
-- `session_ttl_hours` defaults to 4 in code when absent (`src/gateway/mod.rs:44`); config.example.json shows 168 as a suggestion
+- Config example: `resources/templates/config.example.json` (released to `~/.picobot/` on first run)
 
 ## Tests
 

README.md

@@ -220,7 +220,7 @@ graph LR
     Providers --> PT["type (openai / anthropic)<br/>base_url<br/>api_key<br/>extra_headers"]
     Models --> MT["model_id<br/>temperature<br/>max_tokens"]
     Agents --> AT["provider (ref)<br/>model (ref)<br/>max_tool_iterations<br/>token_limit"]
-    Gateway --> GT["host / port<br/>session_ttl_hours<br/>cleanup_interval_minutes<br/>session_db_path<br/>scheduler"]
+    Gateway --> GT["host / port<br/>session_db_path<br/>scheduler"]
     Channels --> CT["feishu: app_id, app_secret<br/>allow_from, agent, media_dir"]
 ```
 
@@ -234,8 +234,6 @@ The `.env` file in the working directory is loaded manually (not via dotenv crat
 |-----|------|---------|-------------|
 | `host` | string | `127.0.0.1` | Bind address |
 | `port` | u16 | `19876` | Listen port |
-| `session_ttl_hours` | number | `4` | Inactive session expiration (hours) |
-| `cleanup_interval_minutes` | number | `60` | Session cleanup interval |
 | `session_db_path` | string | workspace `picobot.db` | SQLite database path |
 | `scheduler.enabled` | bool | `false` | Enable cron scheduler |
 
@@ -402,6 +400,8 @@ Integration tests are `#[ignore]` by default because they make real API calls.
 │   ├── test.env.example      # Test environment template
 │   └── test.env              # Actual test keys (gitignored)
 ├── reference/                # Third-party reference code (do not modify)
+├── resources/                 # Assets embedded in binary
+│   └── templates/             # Templates released to ~/.picobot/ on first run
 ├── config.example.json       # Full config example
 └── Cargo.toml
 ```

resources/templates/config.example.json

@@ -46,8 +46,7 @@
     },
     "gateway": {
         "host": "127.0.0.1",
-        "port": 19876,
-        "session_ttl_hours": 168
+        "port": 19876
     },
     "client": {
         "gateway_url": "ws://127.0.0.1:19876/ws"
@@ -67,7 +66,6 @@
         "consolidation_provider": null,
         "consolidation_model": null,
         "recall_limit": 5,
-        "consolidation_turn_threshold": 10,
         "idle_consolidation_minutes": 10,
         "timeline_retention_days": 90,
         "max_failures_before_degrade": 3

src/config/mod.rs

@@ -233,9 +233,6 @@ pub struct MemoryConfig {
     /// Max knowledge entries injected into system prompt per turn.
     #[serde(default = "default_recall_limit")]
     pub recall_limit: usize,
-    /// Number of turns without consolidation before forcing one.
-    #[serde(default = "default_consolidation_turn_threshold")]
-    pub consolidation_turn_threshold: usize,
     /// Idle minutes before triggering consolidation (for async channels).
     #[serde(default = "default_idle_consolidation_minutes")]
     pub idle_consolidation_minutes: u64,
@@ -253,7 +250,6 @@ impl Default for MemoryConfig {
             consolidation_provider: None,
             consolidation_model: None,
             recall_limit: 5,
-            consolidation_turn_threshold: 10,
             idle_consolidation_minutes: 10,
             timeline_retention_days: 90,
             max_failures_before_degrade: 3,
@@ -274,7 +270,6 @@ impl MemoryConfig {
 }
 
 fn default_recall_limit() -> usize { 5 }
-fn default_consolidation_turn_threshold() -> usize { 10 }
 fn default_idle_consolidation_minutes() -> u64 { 10 }
 fn default_timeline_retention_days() -> u64 { 90 }
 fn default_max_failures_before_degrade() -> usize { 3 }

src/gateway/mod.rs

@@ -378,4 +378,14 @@ fn ensure_default_config_files() {
             tracing::info!(path = %user_path.display(), "Released default USER.md template");
         }
     }
+
+    let config_example_path = picobot_dir.join("config.example.json");
+    if !config_example_path.exists() {
+        let content = include_str!("../../resources/templates/config.example.json");
+        if let Err(e) = std::fs::write(&config_example_path, content) {
+            tracing::warn!(path = %config_example_path.display(), error = %e, "Failed to write config.example.json template");
+        } else {
+            tracing::info!(path = %config_example_path.display(), "Released config.example.json template");
+        }
+    }
 }