Changes for page Data Model

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...	...	@@ -9,29 +9,32 @@
9	9	* **CLAIM_CLUSTER**
10	10	** ``ClusterID`` (PK), ``EmbeddingVectorRef``, ``Theme``
11	11	** Groups related claims into topical clusters.
	12	+** One Cluster has many Claims.
	13	+** A Claim belongs to exactly one primary cluster.
12	12
13	13	* **CLAIM / CLAIM_VERSION**
14	14	** ``CLAIM`` is the long‑lived anchor for a real‑world claim.
15	15	** ``CLAIM_VERSION`` is an immutable snapshot of wording + basic metadata.
16		-** Verdicts are **NOT** attached to ClaimVersion but to Scenario.
	18	+** **Note:** Verdicts are **NEVER** attached directly to a Claim. They are attached to Scenarios.
17	17
18	18	* **SCENARIO / SCENARIO_VERSION**
19	19	** ``SCENARIO`` represents a stable interpretive context for a claim.
20	20	** ``SCENARIO_VERSION`` is an immutable snapshot of that context (definitions, assumptions, boundaries).
21		-** Verdicts are attached to SCENARIO, with verdict history in VERDICT_VERSION.
	23	+** A single Claim may have multiple Scenarios.
22	22
23	23	* **EVIDENCE / EVIDENCE_VERSION**
24	24	** ``EVIDENCE`` is the logical source (report, article, dataset…).
25		-** ``EVIDENCE_VERSION`` is the extracted/processed snapshot (summary, reliability, etc.).
	27	+** ``EVIDENCE_VERSION`` is the extracted/processed snapshot (summary, reliability score, extraction method).
26	26
27	27	* **VERDICT / VERDICT_VERSION**
28		-** ``VERDICT`` represents “this scenario is evaluated for this claim.”
29		-** ``VERDICT_VERSION`` is an immutable snapshot of a concrete evaluation (likelihood, confidence, reasoning, timestamp).
	30	+** ``VERDICT`` represents the assertion "this claim is assessed **under this specific scenario**."
	31	+** ``VERDICT_VERSION`` is an immutable snapshot of the evaluation (likelihood, confidence, reasoning, timestamp).
	32	+** **Cardinality:** 1 Scenario has 1 active Verdict (but many Verdict versions over time). Therefore, 1 Claim has N Verdicts.
30	30
31	31	* **SCENARIO_EVIDENCE_VERSION_LINK**
32	32	** Connects ``ScenarioVersion`` ↔ ``EvidenceVersion`` (many‑to‑many).
33		-** Fields: Relevance, Direction (SUPPORTS / CONTRADICTS / NEUTRAL).
34		-** **Rule:** The link always targets VERSIONED entities, never the base tables.
	36	+** Fields: ``LinkID``, ``Relevance``, ``Direction`` (SUPPORTS / CONTRADICTS / NEUTRAL / MIXED).
	37	+** **Rule:** The link always targets specific **VERSIONS** of entities, never the base tables, to ensure auditability.
35	35
36	36	== Core Data Model ERD ==
37	37