Fix headless OpenCode permission prompts

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/adapters/opencode-local/src/index.ts

@@ -22,6 +22,7 @@ Core fields:
 - instructionsFilePath (string, optional): absolute path to a markdown instructions file prepended to the run prompt
 - model (string, required): OpenCode model id in provider/model format (for example anthropic/claude-sonnet-4-5)
 - variant (string, optional): provider-specific model variant (for example minimal|low|medium|high|max)
+- dangerouslySkipPermissions (boolean, optional): inject a runtime OpenCode config that allows \`external_directory\` access without interactive prompts; defaults to true for unattended Paperclip runs
 - promptTemplate (string, optional): run prompt template
 - command (string, optional): defaults to "opencode"
 - extraArgs (string[], optional): additional CLI args
@@ -40,4 +41,7 @@ Notes:
 - The adapter sets OPENCODE_DISABLE_PROJECT_CONFIG=true to prevent OpenCode from \
   writing an opencode.json config file into the project working directory. Model \
   selection is passed via the --model CLI flag instead.
+- When \`dangerouslySkipPermissions\` is enabled, Paperclip injects a temporary \
+  runtime config with \`permission.external_directory=allow\` so headless runs do \
+  not stall on approval prompts.
 `;