feat: add internal hooks system

src/hooks/bundled/session-memory/HOOK.md

@@ -0,0 +1,76 @@
+---
+name: session-memory
+description: "Save session context to memory when /new command is issued"
+homepage: https://docs.clawd.bot/internal-hooks#session-memory
+metadata: {"clawdbot":{"emoji":"💾","events":["command:new"],"requires":{"config":["workspace.dir"]},"install":[{"id":"bundled","kind":"bundled","label":"Bundled with Clawdbot"}]}}
+---
+
+# Session Memory Hook
+
+Automatically saves session context to your workspace memory when you issue the `/new` command.
+
+## What It Does
+
+When you run `/new` to start a fresh session:
+
+1. **Finds the previous session** - Uses the pre-reset session entry to locate the correct transcript
+2. **Extracts conversation** - Reads the last 15 lines of conversation from the session
+3. **Generates descriptive slug** - Uses LLM to create a meaningful filename slug based on conversation content
+4. **Saves to memory** - Creates a new file at `<workspace>/memory/YYYY-MM-DD-slug.md`
+5. **Sends confirmation** - Notifies you with the file path
+
+## Output Format
+
+Memory files are created with the following format:
+
+```markdown
+# Session: 2026-01-16 14:30:00 UTC
+
+- **Session Key**: agent:main:main
+- **Session ID**: abc123def456
+- **Source**: telegram
+```
+
+## Filename Examples
+
+The LLM generates descriptive slugs based on your conversation:
+
+- `2026-01-16-vendor-pitch.md` - Discussion about vendor evaluation
+- `2026-01-16-api-design.md` - API architecture planning
+- `2026-01-16-bug-fix.md` - Debugging session
+- `2026-01-16-1430.md` - Fallback timestamp if slug generation fails
+
+## Requirements
+
+- **Config**: `workspace.dir` must be set (automatically configured during onboarding)
+
+The hook uses your configured LLM provider to generate slugs, so it works with any provider (Anthropic, OpenAI, etc.).
+
+## Configuration
+
+No additional configuration required. The hook automatically:
+- Uses your workspace directory (`~/clawd` by default)
+- Uses your configured LLM for slug generation
+- Falls back to timestamp slugs if LLM is unavailable
+
+## Disabling
+
+To disable this hook:
+
+```bash
+clawdbot hooks internal disable session-memory
+```
+
+Or remove it from your config:
+
+```json
+{
+  "hooks": {
+    "internal": {
+      "entries": {
+        "session-memory": { "enabled": false }
+      }
+    }
+  }
+}
+```