fix: flip symlink structure - AGENTS.md is the real file

AGENTS.md is now the canonical instruction file, with CLAUDE.md,
.cursorrules, and .github/copilot-instructions.md as symlinks to it.

This is simpler and more intuitive - the main file is at the root,
not buried in .github/.

Updated all references across agents, commands, skills, and .memory/.

.config/opencode/.github/copilot-instructions.md

@@ -1,51 +0,0 @@
-# OpenCode Agent Configuration
-
-This repository contains the multi-agent configuration for OpenCode, defining agent roles, permissions, quality pipelines, and project memory conventions.
-
-## Project Structure
-
-```
-opencode.jsonc              # Main config: default agent, plugins, permissions, MCP servers
-agents/                     # Agent definitions (one .md per agent)
-  lead.md                   # Primary orchestrator
-  coder.md                  # Implementation agent
-  reviewer.md               # Code review (read-only code, writes .memory/*)
-  tester.md                 # Test validation (writes .memory/*)
-  explorer.md               # Codebase mapping (read-only code, writes .memory/*)
-  researcher.md             # Technical investigation (writes .memory/*)
-  librarian.md              # Documentation specialist (full edit)
-  critic.md                 # Plan review gate (writes .memory/*)
-  sme.md                    # Domain expert (writes .memory/*)
-  designer.md               # UI/UX guidance (writes .memory/*)
-.memory/                    # Persistent project memory (knowledge, decisions, plans, research)
-AGENTS.md                   # Global OpenCode config (not a symlink in this repo)
-CLAUDE.md -> .github/copilot-instructions.md
-.cursorrules -> .github/copilot-instructions.md
-```
-
-## Agent Permission Model
-
-- **Full edit access:** `lead`, `coder`, `librarian`.
-- **Memory-only edit access:** `reviewer`, `tester`, `explorer`, `researcher`, `critic`, `sme`, `designer` — `permission.edit: allow` in config, but instructions restrict edits to `.memory/*` only. Code/source edits remain read-only.
-- OpenCode does not support path-scoped `permission.edit`, so guardrails are instruction-level.
-
-## Memory System
-
-`.memory/` is the persistent project knowledge store:
-- `knowledge.md` — architecture, patterns, key concepts
-- `decisions.md` — architecture decisions, design choices
-- `plans/<feature>.md` — active plans with tasks and statuses
-- `research/<topic>.md` — research findings
-
-Workflow: read relevant `.memory/` files → work → update `.memory/` files with outcomes.
-
-## Quality Pipeline
-
-Standard flow: `explorer/researcher → coder → reviewer → tester → librarian`.
-Three tiers based on change scope (Tier 1: full, Tier 2: standard, Tier 3: fast).
-
-## Conventions
-
-- This repo uses symlinks for cross-tool instruction files: `CLAUDE.md` and `.cursorrules` point to this file.
-- `.memory/knowledge.md` is the canonical source of truth for deep project knowledge.
-- Recording discipline: record only outcomes/decisions/discoveries in `.memory/`, never ceremony checkpoints.

.config/opencode/.github/copilot-instructions.md

@@ -0,0 +1 @@
+../AGENTS.md