feat(api): improve local provider reliability with readiness and self-healing (#738)

* feat(api): classify openai-compatible provider failures

* Update src/services/api/providerConfig.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/errors.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* feat(api): harden openai-compatible diagnostics and env fallback

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/errors.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/errors.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix openaiShim duplicate requests and diagnostics

* remove unused url from http failure classifier

* dedupe env diagnostic warnings

* Remove hardcoded URLs from OpenAI error tests

Removed hardcoded URLs from network failure classification tests.

* Update providerConfig.envDiagnostics.test.ts

* fix(openai-shim): return successful responses and restore localhost classifier tests

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* feat(provider): add truthful local generation readiness checks

Implement Phase 2 provider readiness behavior by adding structured Ollama generation probes, wiring setup flows to readiness states, extending system-check with generation readiness output, and updating focused tests.

* feat(api): add local self-healing fallback retries

Implement Phase 3 self-healing behavior for local OpenAI-compatible providers: retry base URL fallbacks for localhost resolution and endpoint mismatches, plus capability-gated toolless retry for tool-incompatible local models; include diagnostics and focused tests.

* fix(api): address review blockers for local provider reliability

* Update src/utils/providerDiscovery.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/services/api/openaiShim.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: harden readiness probes and cross-platform test stability

* fix: refresh toolless retry payload and stabilize osc clipboard test

* fix: harden Ollama readiness parsing and redact provider URLs

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

src/services/wiki/init.test.ts

@@ -26,10 +26,10 @@ test('initializeWiki creates the expected wiki scaffold', async () => {
 
   expect(result.alreadyExisted).toBe(false)
   expect(result.createdFiles).toEqual([
-    '.openclaude/wiki/schema.md',
-    '.openclaude/wiki/index.md',
-    '.openclaude/wiki/log.md',
-    '.openclaude/wiki/pages/architecture.md',
+    join('.openclaude', 'wiki', 'schema.md'),
+    join('.openclaude', 'wiki', 'index.md'),
+    join('.openclaude', 'wiki', 'log.md'),
+    join('.openclaude', 'wiki', 'pages', 'architecture.md'),
   ])
   expect(await readFile(paths.schemaFile, 'utf8')).toContain(
     '# OpenClaude Wiki Schema',