Granular context memory for DeepSeek Harness

Key features

• older turns use a subagent, where a cheap model reads the turn's full text and answers the targeted question.
• Hindsight is written in natural language, not bracket tags: when a later development proves an earlier entry wrong, the correction is annotated inline at the point it went wrong — "I thought X might work.
• If the main agent leaves a turn unsummarized for a whole turn, a fallback fork summarizes it (one turn late)
• dsh-web-restart — restarting the dsh web server after profile/plugin changes.
• raw — the turn's full text is returned directly into the conversation