feat: self-learning + self-update features + OAuth refresh tokens + fix telegram stream split bug

Cargo.toml

@@ -58,5 +58,10 @@ sqlite-vec = "0.1"
 # Setup wizard web server (used only by src/bin/setup.rs)
 axum = "0.8"
 
+# OAuth 2.0 / PKCE helpers (used only by src/bin/setup.rs)
+rand = "0.8"
+sha2 = "0.10"
+base64 = "0.22"
+
 [dev-dependencies]
 tempfile = "3"

README.md

@@ -261,11 +261,11 @@ skills/
 - [x] RAG query rewriting (disambiguates follow-up questions before vector search)
 - [x] Nightly conversation summarization (LLM-based cron job)
 - [x] Verbose tool UI (`/verbose` command — live tool call progress in Telegram)
+- [x] Google integration tools (Calendar, Email, Drive)
 
 ### Planned
 
 - [ ] Image upload support
-- [ ] Google integration tools (Calendar, Email, Drive)
 - [ ] Event trigger framework (e.g., on email receive)
 - [ ] WhatsApp support
 - [ ] Webhook mode (in addition to polling)

config.example.toml

@@ -148,6 +148,30 @@ directory = "skills"
 # These servers are reached over HTTPS and do not require a local command.
 # Use `url` instead of `command`; optionally set `auth_token` for Bearer auth.
 
+# Example: Notion MCP server (official HTTP MCP — no Node.js required)
+# Docs: https://developers.notion.com/guides/mcp/mcp
+#
+# Recommended: use the setup wizard (cargo run --bin setup) to obtain an OAuth
+# access token via the built-in OAuth 2.0 flow.  The wizard also stores the
+# refresh token and expiry so the bot can automatically renew the connection.
+#
+# The bot refreshes the access token automatically when it is within 5 minutes
+# of expiry and writes the new credentials back to this file.  Manual setup:
+#   1. Create a Notion integration at https://www.notion.so/my-integrations
+#      and note your client_id and client_secret.
+#   2. Complete the OAuth flow to obtain an access_token and refresh_token.
+#   3. Fill in the fields below.
+#
+# [[mcp_servers]]
+# name = "notion"
+# url = "https://mcp.notion.com/mcp"
+# auth_token = "your-notion-oauth-access-token"
+# refresh_token = "your-notion-oauth-refresh-token"
+# token_expires_at = 1234567890          # Unix timestamp; set by the wizard
+# token_endpoint = "https://api.notion.com/v1/oauth/token"
+# oauth_client_id = "your-notion-client-id"
+# oauth_client_secret = "your-notion-client-secret"  # omit for public clients
+
 # Example: Exa AI web search (https://mcp.exa.ai)
 # Get your API key at https://dashboard.exa.ai/api-keys
 #
@@ -161,3 +185,11 @@ directory = "skills"
 # [[mcp_servers]]
 # name = "exa"
 # url = "https://mcp.exa.ai/mcp?exaApiKey=your-exa-api-key"
+
+# ── Self-Learning (optional; defaults apply if section omitted) ─────────────
+# [learning]
+# user_model_path = "memory/USER.md"          # Honcho-style user model file
+# skill_extraction_enabled = true              # Auto-generate skills from tool-heavy tasks
+# skill_extraction_threshold = 5              # Min tool calls to trigger extraction
+# user_model_update_interval = 10             # Update user model every N user messages
+# user_model_cron = "0 0 3 * * SUN"           # Weekly user model refresh (6-field cron)