feat(epistemics): evaluate read-only research evidence

dev/ACTIVE_TASK.json

@@ -1,5 +1,5 @@
 {
-  "task_file": "dev/tasks/DEV-000139-production-worker-runtime.json",
-  "task_id": "DEV-000139",
-  "task_revision": 2
+  "task_file": "dev/tasks/DEV-000140-research-evaluation-runtime.json",
+  "task_id": "DEV-000140",
+  "task_revision": 1
 }

dev/tasks/DEV-000140-research-evaluation-runtime.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000140",
+  "task_revision": 1,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "07a8de9",
+  "risk_tier": "E",
+  "intent": "Evaluate read-only research evidence into explicit supported, stale, conflicted or unknown findings without persistence or authority mutation.",
+  "requirement_ids": ["WP-102", "research evaluation", "citation provenance", "freshness", "conflict visibility"],
+  "allowed_change_scope": {"modules": ["epistemics-research-runtime"], "paths": ["contracts/epistemics/research.go", "modules/epistemics/domain/research.go", "modules/epistemics/application/research.go", "tests/research_runtime/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000140-research-evaluation-runtime.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "deploy/**", "security/**", "cmd/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["ADR-0019 typed source, snapshot, excerpt and citation contracts"], "may_change": ["typed research finding and read-only connector boundary"]},
+  "semantic_owner": "epistemics",
+  "canonical_state": [],
+  "state_transitions": ["connector evidence -> supported/stale/conflicted/unknown result", "invalid source chain -> rejected"],
+  "side_effects_and_privileges": ["read-only connector boundary; no external mutation; no claim persistence"],
+  "persistence_and_migrations": ["none"],
+  "failure_retry_restart": ["evaluation is pure and repeatable; connector failures remain errors"],
+  "assumptions": ["connectors provide immutable exact excerpts and source snapshots", "proposition keys are connector-supplied typed grouping keys"],
+  "acceptance_scenarios": ["no evidence remains UNKNOWN", "stale evidence is marked STALE", "incompatible statements remain CONFLICTED", "invalid citation chain is rejected", "connector boundary cannot mutate canonical state"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "research runtime tests"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_ARCHITECTURE_GAP", "BLOCKED_BY_CONFLICT"]
+}