chore: move flight plans to system/plans

system/plans/flight-plan-night-shift-phase-1.org

@@ -0,0 +1,21 @@
+* Flight Plan: Night Shift Phase 1 (Neural Infrastructure)
+:PROPERTIES:
+:STATUS: IN-PROGRESS
+:END:
+
+** Analyst Phase
+Identify skeletal LLM provider and auth skills. Ensure they register their backends correctly with the kernel.
+
+** Coder Phase
+- [ ] Implement =org-skill-provider-gemini.org=
+- [ ] Implement =org-skill-provider-openrouter.org=
+- [ ] Implement =org-skill-provider-anthropic.org=
+- [ ] Implement =org-skill-provider-openai.org=
+- [ ] Implement =org-skill-provider-local.org=
+- [ ] Implement =org-skill-auth-api-key.org=
+- [ ] Implement =org-skill-auth-google-oauth.org=
+
+** Tester Phase
+1. Tangle each file.
+2. Load into SBCL and check for package/symbol errors.
+3. Verify registration in kernel backends table.