refactor: restructure docs as submodule, add dev-docs/ and AGENTS.md

- Move ASPICE docs to chanoraapp/docs submodule at docs/
- Move development docs to dev-docs/ (superpowers, offline-knowledge, impl-mapping)
- Add AGENTS.md with project conventions for AI agents
- Add impl-mapping.md (SAD component → source file mapping)
- Archive completed plans to dev-docs/superpowers/plans/_archived/
- Remove AGENTS.md from .gitignore (now tracked)

dev-docs/release/ios-build.md

@@ -0,0 +1,47 @@
+# iOS release build
+
+This document records the credential-free iOS P1 release path and the signing handoff for TestFlight/App Store builds.
+
+## Unsigned verification build
+
+Run from the repository root on macOS:
+
+```bash
+flutter --version
+./tools/build-ios.sh --no-codesign
+```
+
+Expected unsigned output:
+
+```text
+apps/chanora_flutter/build/ios/iphoneos/Runner.app/
+```
+
+## Store export configuration
+
+The App Store export template lives at:
+
+```text
+apps/chanora_flutter/ios/ExportOptions/AppStore.plist
+```
+
+Use it after Apple signing assets are available:
+
+```bash
+./tools/build-ios.sh --export-method app-store --export-options-plist apps/chanora_flutter/ios/ExportOptions/AppStore.plist
+```
+
+Required signing assets:
+
+- Apple Developer team access for `app.chanora.chanoraFlutter`
+- App Store distribution certificate or automatic signing permission
+- App Store provisioning profile if automatic signing is not used
+- Xcode 26 or later for uploads on or after 2026-04-28
+
+## Verification checklist
+
+- `flutter test` passes in `apps/chanora_flutter`
+- `flutter analyze` passes in `apps/chanora_flutter`
+- `flutter build ios --release --no-codesign` succeeds
+- Signed App Store export succeeds once credentials are installed
+- App Store metadata does not imply TeamSpeak affiliation