feat(ghost): replace symlink farm with native project discovery control

[kdcokenny]

Summary

Removes the symlink farm architecture from ghost mode, replacing it with OpenCode's native OPENCODE_DISABLE_PROJECT_CONFIG environment variable.

Dependencies

⚠️ Blocked by upstream: This PR requires sst/opencode#8093 to be merged first.

Changes

• Deleted: symlink-farm.ts, pattern-filter.ts, file-sync.ts + tests (~1000 lines)
• Simplified: opencode.ts (512 → 304 lines, -40%)
• Schema: Removed exclude, include, maxFiles fields
• Docs: Updated AGENTS.md with new flow

Migration

Profiles with instruction files must add to their opencode.jsonc:

{
  "instructions": ["./AGENTS.md"]  // and/or CLAUDE.md, CONTEXT.md
}

New Flow

OpenCode now runs directly in the project directory with:

• OPENCODE_DISABLE_PROJECT_CONFIG=true
• OPENCODE_CONFIG_DIR pointing to profile

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Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	ocx	20c5aa0	Jan 20 2026, 04:08 AM

[kdcokenny]

Testing Summary

Tested with OpenCode fork containing PR #8093 (OPENCODE_DISABLE_PROJECT_DISCOVERY).

Test Environment

• OCX branch: feat/remove-symlink-farm
• OpenCode: feat/disable-project-discovery branch (built from source)
• Profile: ocx-dev

Recreation Steps

# 1. Build OCX
cd ~/workspace/kdcokenny/ocx/packages/cli && bun run build && cd ../..

# 2. Build OpenCode fork
cd /path/to/opencode/packages/opencode && bun run build

# 3. Create test project
mkdir -p /tmp/ocx-test/src/components
echo "ROOT" > /tmp/ocx-test/AGENTS.md
echo "SRC" > /tmp/ocx-test/src/AGENTS.md
echo "COMP" > /tmp/ocx-test/src/components/AGENTS.md
cd /tmp/ocx-test && git init

# 4. Set OpenCode binary
export OPENCODE_BIN="/path/to/opencode/dist/opencode-darwin-arm64/bin/opencode"

# 5. Run tests
~/workspace/kdcokenny/ocx/packages/cli/dist/index.js ghost opencode run "List AGENTS.md contents and MCP servers"

Test Results

Test	ghost.jsonc Config	Expected	Result
Default (exclude all)	Default excludes	Only profile AGENTS.md visible	✅ Pass
Include all AGENTS.md	Remove **/AGENTS.md from exclude	COMP → SRC → ROOT (deepest first)	✅ Pass
Include specific file	exclude: ["**/AGENTS.md"], include: ["src/components/AGENTS.md"]	Only COMP visible	✅ Pass
MCP servers loaded	Default	context7, exa, gh_grep connected	✅ Pass
./ prefix normalization	include: ["./src/components/AGENTS.md"]	Pattern matches correctly	✅ Pass
OPENCODE_BIN override	N/A	Custom binary used	✅ Pass

Dependencies

⚠️ Blocked by upstream: This PR requires sst/opencode#8093 to be merged first.

Summary

All tests passed. The new architecture:

• Replaces symlink farm with direct execution
• Uses OPENCODE_DISABLE_PROJECT_DISCOVERY to prevent project config loading
• Implements TypeScript/Vite-style exclude/include patterns for instruction file discovery
• Reduces code complexity by ~3,000 lines