P14-02: Add buildable Mana warp (A07)

2x2 FRONT warp at 3000G/30 materials/360 min, 15G/day and 1 Mana upkeep.
Every completed warp pair is linked by one path connector, so crossing is a
single step; a 3-Mana fare per rider is charged once in the step's tick.
Warps close while either end is unpowered, the reserve is empty or below one
fare, and blocked arrivals offer no step. Saves validate the derived links.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/plans/original-completion-2026-10-02/decisions.json

@@ -41,6 +41,13 @@
       "origin": "user_reply_in_conversation",
       "approved_at_jst": "2026-10-19",
       "reference": "execution/mana-proposal/PROPOSAL.md"
+    },
+    {
+      "id": "A07",
+      "title": "マナワープの初期値（推薦案）",
+      "decision": "2x2・表層。建設3000G・資材30、工期360分、維持費15G／日、維持マナ1／10分。建設済みワープは全て相互接続。利用者は客と接客中の従業員。1人1回3マナを出発時に一回だけ差し引く。残量不足・停電・到着先不可のときは経路から除外し、費用と移動を発生させない。途中保存・再開で費用と移動を二重反映しない。",
+      "origin": "user_reply_in_conversation",
+      "approved_at_jst": "2026-10-20"
     }
   ],
   "pending": [

docs/plans/original-completion-2026-10-02/plan_validation.json

@@ -84,7 +84,7 @@
       "passed": true
     },
     {
-      "name": "all6_confirmed_decisions",
+      "name": "all7_confirmed_decisions",
       "passed": true
     },
     {
@@ -238,7 +238,7 @@
     "build_atomic_requirements.py": "6d6ea9e4216372dbd0f9fed3f885a4481b21a3f539a26f64cf98a6830af984c5",
     "build_facility_value_contracts.py": "35027b23ce75ce9e4e0cdfc5132fd2eb771ba9f598d97750d7ecf9ecb257f769",
     "current_evidence_links.json": "db1837bcc8497201134297e312f4b266a297102285307ec3075d4e23632e26c2",
-    "decisions.json": "7771ef179b73f061363685a218f7b0d300847fc5881ce0c8b108ca62b2076dfe",
+    "decisions.json": "b0e4483e453703d0d5587ba340a2ab7f61cb95b34bd9cd1f1a411b1b8f52c866",
     "facility_value_contracts.json": "447388ba03a29bfac25f2bcd068665aedbb07ba7641ce86f2db93d44f4c9f326",
     "facility_value_contracts_validation.json": "bf490a9ca585c48fc318e76c4a069ef244827d828d46e6415399f7710590dd16",
     "performance_audit.json": "0b630b15a392c3e0366f1362bfe4ddacb968f915f54549f82e4d6fa315384762",
@@ -251,7 +251,7 @@
     "source_atomic_coverage.json": "2ab7b9e6a2536ef248d4f7ccd695bf75a082b47018aca7a5a1b6b706fe1907bc",
     "validate_atomic_requirements.py": "5b2d0b7d72cb124830fbb0a12d1434e6db698148cc5263d33fd5bd7c2953a1e0",
     "validate_facility_value_contracts.py": "91640e2a76cd6cc9186f7b85c0bf379b24b6cac0d48962815235ee628e7ae43e",
-    "validate_plan.py": "e31316aff6c814d1e1660a97b91cc0c0016d2b722c4d4092a71859a85bd0e65d",
+    "validate_plan.py": "13d6c95ec17e87215cefc3a94f398b10dd9b63516cd0039bc6e77c3940998d84",
     "validator_update_checks.json": "f997d0f3de2cea29550840b1d5cb23647d64f81329de46758551e2b6c8fecc27",
     "work_packages.json": "d2549dae70c8240cef62c5447d570d67789a46f8b944422b5155d326aab13984"
   }

docs/plans/original-completion-2026-10-02/validate_plan.py

@@ -172,7 +172,7 @@ def main():
     pending = {d["id"] for d in decisions["pending"]}
     check("all10_pending_decision_groups", pending == {f"D{i:02d}" for i in range(1, 11)})
     check("known_decision_references", all(set(p["decisions"]) <= pending for p in packages))
-    check("all6_confirmed_decisions", {d["id"] for d in decisions["confirmed"]} == {f"A{i:02d}" for i in range(1, 7)})
+    check("all7_confirmed_decisions", {d["id"] for d in decisions["confirmed"]} == {f"A{i:02d}" for i in range(1, 8)})
     check("confirmed_decision_references_exist", all((PLAN / d["reference"]).is_file() for d in decisions["confirmed"] if "reference" in d))
     state_counts = dict(collections.Counter(p["state"] for p in packages))
     check("valid_package_states", all(p["state"] in states for p in packages))