Establish prompt engineering baseline with Gold Standard tests

- introduce Gold Standard evaluation corpus
- document decision taxonomy
- define prompt-engineering methodology
- add regression workflow
- establish Prompt Version 2 baseline
- validate decision_simple, decision_deferred and decision_none

tests/gold/evil_meeting/expected.json

@@ -0,0 +1,73 @@
+{
+  "facts": [
+    {
+      "fact": "Tenant FR-7 still used the nightly CSV job yesterday.",
+      "evidence": "Alex: Fine. So fact: tenant FR-7 still used the nightly CSV job yesterday."
+    },
+    {
+      "fact": "Omar is the customer contact, not the technical owner.",
+      "evidence": "Bea: Omar is the customer contact, not a participant here and not the technical owner."
+    },
+    {
+      "fact": "Platform is the technical owner, but nobody from Platform is in the meeting.",
+      "evidence": "Chen: The technical owner is still Platform, but nobody from Platform is in this call."
+    },
+    {
+      "fact": "Friday's rollout batch still includes DE-2 and NL-4.",
+      "evidence": "Alex: Good. Back to the portal rollout. Friday's batch still includes DE-2 and NL-4."
+    }
+  ],
+  "decisions": [
+    {
+      "decision": "FR-7 is excluded from Friday's portal rollout batch.",
+      "evidence": "the portal rollout note will say FR-7 is excluded from Friday's batch. Bea: Agreed. Excluded from Friday's batch. Chen: Yes, put that in."
+    }
+  ],
+  "todos": [
+    {
+      "task": "Check the FR-7 mapping table.",
+      "responsible": "Bea",
+      "deadline": "Thursday morning",
+      "evidence": "Bea: Yes, I will check it by Thursday morning."
+    }
+  ],
+  "questions": [
+    {
+      "question": "Can FR-7 use the v2 mapping without a customer-side field rename?",
+      "evidence": "Alex: Open question: can FR-7 use the v2 mapping without a customer-side field rename?"
+    },
+    {
+      "question": "Can Omar confirm FR-7's preferred launch window?",
+      "evidence": "Dana: Also, can Omar confirm their preferred launch window?"
+    }
+  ],
+  "positions": [
+    {
+      "speaker": "Dana",
+      "position": "Dana wants to migrate FR-7 but recognizes the mapping table may not be clean.",
+      "evidence": "Dana: I want to, but we do not know if the mapping table is clean."
+    },
+    {
+      "speaker": "Bea",
+      "position": "Bea changed her earlier position and now says not to migrate FR-7 until the mapping table is checked.",
+      "evidence": "I said last week we should migrate it. I am changing that. Do not migrate until the mapping table is checked."
+    },
+    {
+      "speaker": "Dana",
+      "position": "Dana thinks excluding FR-7 makes the rollout look messy.",
+      "evidence": "Dana: I personally think excluding FR-7 makes the rollout look messy."
+    }
+  ],
+  "technical": [
+    {
+      "subject": "French export failure",
+      "statement": "The old nightly CSV job failed; the new exporter was not running on tenant FR-7.",
+      "evidence": "The old export failed. The new exporter was not running on that tenant."
+    },
+    {
+      "subject": "Export mapping tables",
+      "statement": "The API export uses the v2 mapping table, while the nightly CSV job uses the legacy table.",
+      "evidence": "the API export uses the v2 mapping table, the nightly CSV job uses the legacy table."
+    }
+  ]
+}