[Fix] Add experimental.hook schema support for file linting

[randomm]

Problem

oclite fails to start with ConfigInvalidError when opencode.work.json contains an experimental.hook section.

Error:

ConfigInvalidError: ConfigInvalidError
 data: {
  path: "/Users/janni/.config/opencode/opencode.work.json",
  issues: [[Object ...], [Object ...]]
 }

Root Cause

The experimental schema in packages/opencode/src/config/config.ts (lines 1120-1191) uses .strict() and doesn't include hook as a valid field.

Config in Use

"experimental": {
  "hook": {
    "file_edited": {
      "python_linter": [{"command": ["ruff", "check", "--fix", "."], "environment": {}}],
      ...
    }
  }
}

Solution

Add hook to the experimental schema:

// In packages/opencode/src/config/config.ts, add to experimental schema:
hook: z
  .object({
    file_edited: z.record(z.string(), z.array(
      z.object({
        command: z.array(z.string()),
        environment: z.record(z.string(), z.string()).optional(),
      })
    )).optional()
  })
  .optional()

Files

• packages/opencode/src/config/config.ts - lines 1120-1191

Acceptance Criteria

• experimental.hook.file_edited is a valid config option
• oclite starts without ConfigInvalidError when hook config present
• Tests pass

[randomm]

Closing - user fixed config manually by removing invalid experimental.hook section. Schema change not needed.