feat(agents): Support full RPI workflow in OpenCode and Kilo CLI

[AhmedMustafa249]

Summary

Extend HVE-Core's Copilot agent collection to OpenCode (and Kilo CLI) for the full RPI workflow. Agent body content is 100% portable; frontmatter requires a translation layer and runSubagent maps to OpenCode's task tool. Targets .opencode/agents/, .opencode/skills/, and .opencode/commands/.

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Work Required:

RPI agents

• task-researcher → .opencode/agents/task-researcher.md
• task-planner → .opencode/agents/task-planner.md
• task-implementor → .opencode/agents/task-implementor.md — map runSubagent → task tool
• task-reviewer → .opencode/agents/task-reviewer.md — preserve Complete / Iterate / Escalate statuses
• rpi-agent (orchestrator) → .opencode/agents/rpi-agent.md — full 5-phase dispatch via task tool
  Subagents (all mode: subagent, hidden: true)
• researcher-subagent, plan-validator, phase-implementor, rpi-validator, implementation-validator
  Utility agents
• memory, doc-ops, pr-review, prompt-builder + its subagents
  Commands
• Port all 15 prompts → .opencode/commands/; translate ${input:var} → $ARGUMENTS
  Skills
• pr-reference → .opencode/skills/pr-reference/SKILL.md
  Docs & pipeline
• docs/architecture/opencode-mapping.md — Copilot ↔ OpenCode artifact mapping
• Update install.md, README.md, CUSTOM-AGENTS.md for OpenCode
• Extend Generate-Plugins.ps1 with -Target OpenCode; add ConvertTo-OpenCodeAgent transformer

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Acceptance Criteria

• All 9 primary agents and 8 subagents exist under .opencode/agents/ and load correctly
• rpi-agent drives the full 5-phase workflow in OpenCode
• All subagents use mode: subagent and hidden: true; orchestrator dispatches via task tool
• pr-reference skill exists under .opencode/skills/
• All RPI artifacts use .copilot-tracking/ for state and output

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Related

• feat(agents): Support RPI workflow in Claude Code #474 — feat(agents): Support RPI workflow in Claude Code (parallel port; this follows the same pattern)

[AhmedMustafa249]

Supposed to have the 'feature' and 'agent' labels but I can't change labels 😭

[WilliamBerryiii]

I'm going to move this to discussions so we've got a more open format to chat through the proposal.