feat(defects): read API — feed, per-section counts and history (T6)

GET /api/defects returns a newest-first feed joined to the project name,
bounded by limit; ?section=ID narrows to one section's history. GET
/api/defects/counts returns { sectionId: n } for the weak-point map. Adds a
(section_id, created_at) index and a db:seed script; ~2k rows query in ~20ms.

server/db/migrations/meta/0002_snapshot.json

@@ -0,0 +1,211 @@
+{
+  "id": "03c0f924-93f1-4194-8e63-2bc4e37f7a8d",
+  "prevId": "16079f27-2c98-41cc-a954-d09599102874",
+  "version": "7",
+  "dialect": "postgresql",
+  "tables": {
+    "public.defects": {
+      "name": "defects",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true
+        },
+        "section_id": {
+          "name": "section_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "project_id": {
+          "name": "project_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "verbatim": {
+          "name": "verbatim",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "reporter_email": {
+          "name": "reporter_email",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        }
+      },
+      "indexes": {
+        "defects_section_created_idx": {
+          "name": "defects_section_created_idx",
+          "columns": [
+            {
+              "expression": "section_id",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            },
+            {
+              "expression": "created_at",
+              "isExpression": false,
+              "asc": false,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": false,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        }
+      },
+      "foreignKeys": {
+        "defects_project_id_projects_id_fk": {
+          "name": "defects_project_id_projects_id_fk",
+          "tableFrom": "defects",
+          "tableTo": "projects",
+          "columnsFrom": [
+            "project_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "no action",
+          "onUpdate": "no action"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.projects": {
+      "name": "projects",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        }
+      },
+      "indexes": {
+        "projects_name_lower_idx": {
+          "name": "projects_name_lower_idx",
+          "columns": [
+            {
+              "expression": "lower(\"name\")",
+              "asc": true,
+              "isExpression": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": true,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.push_subscriptions": {
+      "name": "push_subscriptions",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true
+        },
+        "endpoint": {
+          "name": "endpoint",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "p256dh": {
+          "name": "p256dh",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "auth": {
+          "name": "auth",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "reporter_email": {
+          "name": "reporter_email",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp with time zone",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {
+        "push_subscriptions_endpoint_unique": {
+          "name": "push_subscriptions_endpoint_unique",
+          "nullsNotDistinct": false,
+          "columns": [
+            "endpoint"
+          ]
+        }
+      },
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    }
+  },
+  "enums": {},
+  "schemas": {},
+  "sequences": {},
+  "roles": {},
+  "policies": {},
+  "views": {},
+  "_meta": {
+    "columns": {},
+    "schemas": {},
+    "tables": {}
+  }
+}

server/db/migrations/meta/_journal.json

@@ -15,6 +15,13 @@
       "when": 1779916898127,
       "tag": "0001_boring_randall",
       "breakpoints": true
+    },
+    {
+      "idx": 2,
+      "version": "7",
+      "when": 1779920052613,
+      "tag": "0002_mixed_chronomancer",
+      "breakpoints": true
     }
   ]
 }