[FEATURE] Persistent Session Memory

Summary

Add the ability for opencode to load previous conversation context from a local file at startup, enabling continuity between sessions.

Use Case

• Users who want AI assistant to remember previous conversations
• CLI-based AI companions that need persistence between sessions
• Developers wanting a lightweight alternative to database-backed memory

Proposed Solution

Add a --memory-file or --load-context flag that:

1. Reads a specified markdown/text file before starting the chat
2. Injects the content as system context at session start
3. Optionally appends session summary to the file at end of session

Example Usage

# Load previous context
opencode --memory-file ./my-memory.md

# Or with short flag
opencode -m ./my-memory.md

Alternative

Could also support a config option in openclaude.json:

{
  "memory": {
    "enabled": true,
    "file": "./memory.md",
    "autoSave": true
  }
}

Benefits

• Simple, file-based approach - no database required
• User has full control over their data
• Works offline
• Easy to back up or share

Priority

Medium - useful for personal AI companions and persistent CLI assistants

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