Fáze 1.3+1.4: extrakce forecast korekce a DB vrstvy plánovače

- services/planning/forecast.py: compute_correction_factor, apply_forecast_correction
- services/planning/db_io.py: _ev_session_from_json, _load_site_context,
  _load_previous_plan_charge_commitment_prev_w, _load_slots, _build_slot_inputs,
  _save_planning_run, _save_failed_planning_run
- .claude/settings.json: projektový allowlist (autonomní běhy bez promptů)

Fasáda beze změny chování; golden 5/5, baseline faily beze změny.
planning_engine.py: 6345 → 5717 řádků.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.claude/settings.json

@@ -0,0 +1,63 @@
+{
+  "permissions": {
+    "defaultMode": "acceptEdits",
+    "allow": [
+      "Read",
+      "Edit",
+      "Write",
+      "Glob",
+      "Grep",
+      "mcp__postgres-ems__query",
+      "Skill(update-config)",
+      "Bash(claude mcp *)",
+      "Bash(python3 *)",
+      "Bash(python *)",
+      "Bash(pytest *)",
+      "Bash(EMS_DB_DSN=*)",
+      "Bash(GOLDEN_UPDATE=*)",
+      "Bash(git *)",
+      "Bash(ls *)",
+      "Bash(ls)",
+      "Bash(cat *)",
+      "Bash(cat)",
+      "Bash(grep *)",
+      "Bash(rg *)",
+      "Bash(find *)",
+      "Bash(sed *)",
+      "Bash(awk *)",
+      "Bash(head *)",
+      "Bash(tail *)",
+      "Bash(wc *)",
+      "Bash(sort *)",
+      "Bash(uniq *)",
+      "Bash(diff *)",
+      "Bash(du *)",
+      "Bash(mkdir *)",
+      "Bash(cp *)",
+      "Bash(mv *)",
+      "Bash(touch *)",
+      "Bash(echo *)",
+      "Bash(which *)",
+      "Bash(pwd)",
+      "Bash(cd *)",
+      "Bash(export *)",
+      "Bash(env *)",
+      "Bash(docker ps*)",
+      "Bash(docker logs *)",
+      "Bash(jq *)",
+      "Bash(curl http://localhost*)",
+      "Bash(curl http://127.0.0.1*)"
+    ],
+    "ask": [
+      "Bash(git push*)",
+      "Bash(docker compose down*)",
+      "Bash(docker compose rm*)"
+    ],
+    "deny": [
+      "Bash(rm -rf /*)",
+      "Bash(rm -rf ~*)",
+      "Bash(git reset --hard*)",
+      "Bash(git clean*)"
+    ]
+  }
+}