Add proactivity features: memory CLI, session pruning, self-repair notifications, slash commands, status diagnostics, context warnings

Closes the proactivity gap with six features:

- Memory CLI (`ironclaw memory search/read/write/tree/status`) for direct workspace access without starting the full agent
- Session pruning background task that evicts idle sessions (configurable TTL, default 7 days)
- Self-repair notifications broadcast recovery results through channel manager instead of silent logging
- `/heartbeat`, `/summarize`, `/suggest` slash commands for manual heartbeat trigger, thread summarization, and next-step suggestions
- `ironclaw status` diagnostics command checking DB, session, secrets, embeddings, WASM tools, channels, heartbeat, and MCP servers
- Context pressure warning that notifies users before auto-compaction fires

Co-Authored-By: Claude Opus 4.6 <[email protected]>

src/cli/mod.rs

@@ -6,13 +6,19 @@
 //! - Managing configuration (`config list`, `config get`, `config set`)
 //! - Managing WASM tools (`tool install`, `tool list`, `tool remove`)
 //! - Managing MCP servers (`mcp add`, `mcp auth`, `mcp list`, `mcp test`)
+//! - Querying workspace memory (`memory search`, `memory read`, `memory write`)
+//! - Checking system health (`status`)
 
 mod config;
 mod mcp;
+pub mod memory;
+pub mod status;
 mod tool;
 
 pub use config::{ConfigCommand, run_config_command};
 pub use mcp::{McpCommand, run_mcp_command};
+pub use memory::{MemoryCommand, run_memory_command};
+pub use status::run_status_command;
 pub use tool::{ToolCommand, run_tool_command};
 
 use clap::{Parser, Subcommand};
@@ -79,6 +85,13 @@ pub enum Command {
     /// Manage MCP servers (hosted tool providers)
     #[command(subcommand)]
     Mcp(McpCommand),
+
+    /// Query and manage workspace memory
+    #[command(subcommand)]
+    Memory(MemoryCommand),
+
+    /// Show system health and diagnostics
+    Status,
 }
 
 impl Cli {