* feat(core): add generic native post-install hooks for package install
* feat(core): add before/after install/remove lifecycle hooks
* refactor(core): remove postInstall alias from lifecycle hook fallback
* feat(core): complete authMode support for keyless providers
The initial authMode implementation fixed model-registry, sdk, and
fallback-resolver but missed agent-session.ts (6 callsites) and
compaction-orchestrator.ts (2 callsites) that block externalCli
providers at runtime.
Architecture: separate readiness gating from credential retrieval.
- isProviderRequestReady(): authMode-aware readiness check
- getApiKey()/getApiKeyForProvider(): return undefined for
externalCli/none providers instead of triggering auth errors
- All 8 callsites in agent-session and compaction-orchestrator
now gate on readiness, not key presence
- Downstream signatures (compaction, branch-summarization) accept
apiKey: string | undefined
- Replaced hardcoded ollama exception in discoverModels with
isProviderRequestReady
Zero behavioral change for classic apiKey/oauth providers.
* feat(core): add isReady callback for provider readiness verification
Extensions can now provide an isReady() callback when registering any
provider. isProviderRequestReady() calls it before default auth checks,
allowing providers to verify actual reachability (CLI authenticated,
API key valid, service online) rather than relying solely on credential
presence.
* test(core): expand authMode test coverage
Cover all four auth modes (apiKey, oauth, externalCli, none),
isReady callback behavior, getProviderAuthMode defaults,
isProviderRequestReady for each mode, getAvailable filtering,
and getApiKey early-return for keyless providers.
* chore: remove provider-api-bridge files from this branch
These files implement GSD core → provider-api wiring (deps + tool
registry) and belong in a separate PR. Reverts register-extension.ts
to upstream state.