feat(lenses): Ruth 1-4 lens content, batch 2 of Historical Books (#820, #1783)

content/hermeneutic_lenses/chapters/ru1.json

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+{
+  "lenses": [
+    {
+      "lens_id": "literary",
+      "guidance": "The chapter frames Naomi's journey from full to empty: she leaves with husband and sons and returns bereft, renaming herself Mara, 'bitter' (v 20). The repeated Hebrew shuv ('return') drives the narrative's homeward motif.",
+      "panel_filter": ["lit", "themes", "heb", "alter"],
+      "panel_order": ["lit", "alter", "heb", "themes"]
+    },
+    {
+      "lens_id": "redemptive",
+      "guidance": "Famine drives the family from Bethlehem, the 'house of bread' (v 1); the turn comes when 'the LORD had visited his people and given them food' (v 6). The bleak opening sets the redemptive arc that runs through Boaz to David.",
+      "panel_filter": ["themes", "thread", "cross", "hubbard"],
+      "panel_order": ["themes", "thread", "cross", "hubbard"]
+    },
+    {
+      "lens_id": "canonical",
+      "guidance": "Ruth's identity as a Moabite (v 4) stands against the exclusion of Deut 23:3, yet later Scripture threads her into the Messiah's line (Mt 1:5) — an intertextual reversal that resounds across Scripture.",
+      "panel_filter": ["cross", "thread", "themes"],
+      "panel_order": ["thread", "cross", "themes"]
+    },
+    {
+      "lens_id": "devotional",
+      "guidance": "Ruth's vow — 'your people shall be my people, and your God my God' (vv 16-17) — models a covenant faith that clings (Hebrew dabaq) when circumstances offer nothing, calling the reader to trust God in loss.",
+      "panel_filter": ["calvin", "hubbard", "themes"],
+      "panel_order": ["calvin", "hubbard", "themes"]
+    },
+    {
+      "lens_id": "mission",
+      "guidance": "A Moabite widow confesses Israel's God (vv 16-17) before any king reigns — the nations drawn inward to the LORD's people. Ruth's turn shows the covenant's outward pull toward every people, not Israel alone.",
+      "panel_filter": ["themes", "hist", "thread", "cross"],
+      "panel_order": ["themes", "hist", "thread", "cross"]
+    }
+  ]
+}

content/hermeneutic_lenses/chapters/ru2.json

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+{
+  "lenses": [
+    {
+      "lens_id": "typological",
+      "guidance": "Boaz enters as a 'worthy man' and kinsman of Elimelech (vv 1, 20); his role as goel, kinsman-redeemer, sets the pattern the New Testament sees fulfilled in Christ's redemption of his people.",
+      "panel_filter": ["cross", "thread", "themes", "hubbard"],
+      "panel_order": ["hubbard", "cross", "thread", "themes"]
+    },
+    {
+      "lens_id": "redemptive",
+      "guidance": "Ruth 'happened' to glean in Boaz's field (v 3), the narrator's irony pointing to providence. Hesed, covenant kindness, drives the redemptive plot as Boaz shelters the foreign widow.",
+      "panel_filter": ["themes", "thread", "cross", "hubbard"],
+      "panel_order": ["themes", "hubbard", "thread", "cross"]
+    },
+    {
+      "lens_id": "christocentric",
+      "guidance": "Boaz blesses Ruth for taking refuge 'under the wings' of the LORD (v 12); the redeemer who covers the destitute foreshadows Christ, the greater Redeemer in whom the helpless find refuge.",
+      "panel_filter": ["cross", "thread", "calvin", "themes"],
+      "panel_order": ["cross", "calvin", "thread", "themes"]
+    },
+    {
+      "lens_id": "devotional",
+      "guidance": "Boaz's prayer over Ruth — 'a full reward from the LORD, under whose wings you have come to take refuge' (v 12) — invites the weary to trust God's sheltering care, met in worship.",
+      "panel_filter": ["calvin", "hubbard", "themes"],
+      "panel_order": ["calvin", "hubbard", "themes"]
+    }
+  ]
+}

content/hermeneutic_lenses/chapters/ru3.json

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+{
+  "lenses": [
+    {
+      "lens_id": "typological",
+      "guidance": "At the threshing floor Ruth asks Boaz to 'spread your wings over your servant, for you are a redeemer' (v 9); the goel claiming the destitute prefigures Christ the Redeemer who claims his bride.",
+      "panel_filter": ["cross", "thread", "hubbard", "calvin"],
+      "panel_order": ["hubbard", "cross", "thread", "calvin"]
+    },
+    {
+      "lens_id": "literary",
+      "guidance": "The night threshing-floor scene mirrors the daytime field of Ruth 2; 'wings/cloak' (Hebrew kanaph, v 9) echoes Boaz's blessing at 2:12 — a deliberate verbal bookend binding the two encounters.",
+      "panel_filter": ["lit", "heb", "themes", "alter"],
+      "panel_order": ["lit", "heb", "alter", "themes"]
+    },
+    {
+      "lens_id": "redemptive",
+      "guidance": "Ruth's bold appeal (v 9) advances the redeemer institution: the goel must restore the family line. Naomi's emptiness moves toward fullness as the covenant plan presses on toward David.",
+      "panel_filter": ["themes", "thread", "cross", "hubbard"],
+      "panel_order": ["themes", "thread", "hubbard", "cross"]
+    },
+    {
+      "lens_id": "devotional",
+      "guidance": "Boaz commends Ruth's loyalty as kindness 'greater than the first' (v 10) and acts with integrity, not haste. The chapter invites patient trust that God will resolve what we cannot force.",
+      "panel_filter": ["calvin", "hubbard", "themes"],
+      "panel_order": ["calvin", "hubbard", "themes"]
+    }
+  ]
+}

content/hermeneutic_lenses/chapters/ru4.json

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+{
+  "lenses": [
+    {
+      "lens_id": "redemptive",
+      "guidance": "At the gate Boaz redeems the land and takes Ruth (vv 1-10); the closing genealogy (vv 17-22) runs to David. The redemption of one widow advances the covenant story toward the king.",
+      "panel_filter": ["themes", "thread", "cross", "hubbard"],
+      "panel_order": ["themes", "thread", "cross", "hubbard"]
+    },
+    {
+      "lens_id": "christocentric",
+      "guidance": "The genealogy crowning the book (vv 18-22) carries Perez to David — and the New Testament extends the same line to Jesus (Mt 1:3-6). Boaz's redemption serves the coming of Christ.",
+      "panel_filter": ["cross", "thread", "calvin", "themes"],
+      "panel_order": ["cross", "calvin", "thread", "themes"]
+    },
+    {
+      "lens_id": "canonical",
+      "guidance": "The Perez-to-David line (vv 18-22) reaches back to Judah and Tamar (Gen 38) and forward to Matthew's genealogy (Mt 1:3-6) — Ruth's story a hinge echoed across Scripture's redemptive record.",
+      "panel_filter": ["cross", "thread", "themes"],
+      "panel_order": ["thread", "cross", "themes"]
+    },
+    {
+      "lens_id": "typological",
+      "guidance": "Boaz the goel pays the price to redeem the land and raise up the dead man's name (vv 4-10); his costly kinsman-redemption is the Old Testament pattern fulfilled when Christ redeems his people.",
+      "panel_filter": ["cross", "thread", "hubbard", "calvin"],
+      "panel_order": ["hubbard", "cross", "thread", "calvin"]
+    },
+    {
+      "lens_id": "mission",
+      "guidance": "Ruth the Moabite becomes great-grandmother of David (vv 17, 22) — a foreigner woven into the royal and messianic line. The book shows the nations drawn into God's redemptive purpose.",
+      "panel_filter": ["themes", "hist", "thread", "cross"],
+      "panel_order": ["themes", "hist", "thread", "cross"]
+    }
+  ]
+}