feat(honcho): context injection overhaul, 5-tool surface, cost safety, session isolation

Context Injection Overhaul:
- Base layer: peer.context() (representation + card) cached with 5-minute TTL
- Dialectic supplement: cadence-gated, cached until next refresh
- Trivial prompt skip: short inputs/slash commands skip injection
- New peer guard: dialectic skipped at session start when peer has no context
- Targeted warm prompt for better dialectic quality

Tool Surface (5 bidirectional tools):
- honcho_profile: read or update peer card
- honcho_search: semantic search over context
- honcho_context: full session context (summary, representation, card, messages)
- honcho_reasoning: synthesized answer, reasoning_level param
- honcho_conclude: create or delete conclusions (PII removal)

Cost Safety:
- dialectic_cadence defaults to 3 (~66% fewer LLM calls)
- context_tokens defaults to uncapped (cap opt-in via config/wizard)
- on_turn_start hook wired up (fixes broken cadence/injection gating)

Correctness:
- Explicit target= on peer context/card fetches (fixes identity blur)
- honcho_search perspective fix under directional observation
- Timeout config plumbing
- peerName precedence over gateway user_id
- skip_memory on temp agents (orphan session prevention)
- gateway_session_key for stable per-chat session continuity
- initOnSessionStart for eager tools-mode init
- get_session_context fallback respects peer param
- mid -> medium in reasoning level validation

ABC changes (minimal, honcho-only):
- run_agent.py: gateway_session_key param + memory provider wiring (+5 lines)
- gateway/run.py: skip_memory on 2 temp agents, gateway_session_key on main agent (+3 lines)
- agent/memory_manager.py: sanitize regex for context tag variants (+9 lines)

website/docs/reference/tools-reference.md

@@ -72,7 +72,7 @@ In addition to built-in tools, Hermes can load tools dynamically from MCP server
 | `ha_list_services` | List available Home Assistant services (actions) for device control. Shows what actions can be performed on each device type and what parameters they accept. Use this to discover how to control devices found via ha_list_entities. | — |
 
 :::note
-**Honcho tools** (`honcho_conclude`, `honcho_context`, `honcho_profile`, `honcho_search`) are no longer built-in. They are available via the Honcho memory provider plugin at `plugins/memory/honcho/`. See [Plugins](../user-guide/features/plugins.md) for installation and usage.
+**Honcho tools** (`honcho_profile`, `honcho_search`, `honcho_context`, `honcho_reasoning`, `honcho_conclude`) are available via the Honcho memory provider plugin at `plugins/memory/honcho/`. `honcho_context` returns full session context including summary, representation, card, and recent messages. `honcho_reasoning` provides LLM-synthesized answers. See [Memory Providers](../user-guide/features/memory-providers.md) for installation and usage.
 :::
 
 ## `image_gen` toolset