fix: integrate people archive, report reader and western chart corrections

Validate on Linux Node 22 and PostgreSQL 17: 3894 frontend tests and 64 database tests pass, with no removed test names or new failures. Preserve static Home, bounded gzip, assertion-change records and manual acceptance gaps.

Co-Authored-By: Claude Code <noreply@anthropic.com>

frontend/src/lib/db/local-postgres-client-core.ts

@@ -26,6 +26,7 @@ type Filter =
 
 export type PostgrestOrNode =
   | Readonly<{ kind: "cmp"; column: string; op: CmpOp; value: unknown }>
+  | Readonly<{ kind: "is"; column: string; value: null | boolean }>
   | Readonly<{ kind: "and"; nodes: readonly PostgrestOrNode[] }>;
 
 type Mutation =
@@ -114,6 +115,10 @@ function parsePostgrestTerm(term: string): PostgrestOrNode {
   if (andMatch?.[1] != null) {
     return { kind: "and", nodes: splitTopLevel(andMatch[1]).map(parsePostgrestTerm) };
   }
+  const isMatch = /^([a-z_][a-z0-9_]*)\.is\.(null|true|false)$/.exec(term);
+  if (isMatch) {
+    return { kind: "is", column: isMatch[1], value: isMatch[2] === "null" ? null : isMatch[2] === "true" };
+  }
   const cmp = /^([a-z_][a-z0-9_]*)\.(eq|neq|lt|gt|lte|gte)\.([\s\S]*)$/.exec(term);
   if (!cmp) throw new Error(`unsupported or filter: ${term}`);
   return {
@@ -136,6 +141,7 @@ function compilePostgrestNode(
   if (node.kind === "and") {
     return `(${node.nodes.map((child) => compilePostgrestNode(child, parameters, types)).join(" and ")})`;
   }
+  if (node.kind === "is") return compileUnaryIsClause(node.column, node.value, false);
   identifier(node.column);
   parameters.push(databaseValue(types.get(node.column), node.value));
   return `${identifier(node.column)} ${SQL_CMP[node.op]} $${parameters.length}`;