Rebrand to IronClaw with security-first mission

Renamed project from "near-agent" to "ironclaw" throughout the codebase.
Updated documentation to emphasize the core philosophy:
- Your data stays yours (local, encrypted, no telemetry)
- Self-expanding capabilities (build tools on the fly)
- Defense in depth (WASM sandbox, prompt injection defense)
- Always on user's side

Key changes:
- Package name: near-agent -> ironclaw
- Config paths: ~/.near-agent/ -> ~/.ironclaw/
- Database name in docs: near_agent -> ironclaw
- CLI binary: near-agent -> ironclaw
- Log filters: RUST_LOG=near_agent -> RUST_LOG=ironclaw
- All user-facing strings (welcome messages, help text, etc.)

Preserved for compatibility:
- HKDF salt "near-agent-secrets-v1" (changing would break existing secrets)
- WIT interface names (near::agent::*)
- NEAR AI provider config (NEARAI_* env vars)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

channels-src/slack/Cargo.toml

@@ -2,7 +2,7 @@
 name = "slack-channel"
 version = "0.1.0"
 edition = "2021"
-description = "Slack Events API channel for NEAR Agent"
+description = "Slack Events API channel for IronClaw"
 license = "MIT OR Apache-2.0"
 
 [lib]

channels-src/slack/src/lib.rs

@@ -1,4 +1,4 @@
-//! Slack Events API channel for NEAR Agent.
+//! Slack Events API channel for IronClaw.
 //!
 //! This WASM component implements the channel interface for handling Slack
 //! webhooks and sending messages back to Slack.

channels-src/telegram/Cargo.toml

@@ -2,7 +2,7 @@
 name = "telegram-channel"
 version = "0.1.0"
 edition = "2021"
-description = "Telegram Bot API channel for NEAR Agent"
+description = "Telegram Bot API channel for IronClaw"
 license = "MIT OR Apache-2.0"
 
 [lib]

channels-src/telegram/src/lib.rs

@@ -1,7 +1,7 @@
 // Telegram API types have fields reserved for future use (entities, reply threading, etc.)
 #![allow(dead_code)]
 
-//! Telegram Bot API channel for NEAR Agent.
+//! Telegram Bot API channel for IronClaw.
 //!
 //! This WASM component implements the channel interface for handling Telegram
 //! webhooks and sending messages back via the Bot API.