Fix European trip return heuristic for weekend location tracking

Adjust European short trip heuristic from >3 days to >1 day to correctly
detect when user has returned home from European trips. This fixes the
April 29-30, 2023 case where the location incorrectly showed "Sankt Georg, Hamburg"
instead of "Bristol" when the user was free (no events scheduled) after
the foss-north trip ended on April 27.

The previous logic required more than 3 days to pass before assuming
return home from European countries, but for short European trips by
rail/ferry, users typically return within 1-2 days.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

node_modules/ajv/lib/vocabularies/unevaluated/index.ts

@@ -0,0 +1,7 @@
+import type {Vocabulary} from "../../types"
+import unevaluatedProperties from "./unevaluatedProperties"
+import unevaluatedItems from "./unevaluatedItems"
+
+const unevaluated: Vocabulary = [unevaluatedProperties, unevaluatedItems]
+
+export default unevaluated

node_modules/ajv/lib/vocabularies/unevaluated/unevaluatedItems.ts

@@ -0,0 +1,47 @@
+import type {
+  CodeKeywordDefinition,
+  ErrorObject,
+  KeywordErrorDefinition,
+  AnySchema,
+} from "../../types"
+import type {KeywordCxt} from "../../compile/validate"
+import {_, str, not, Name} from "../../compile/codegen"
+import {alwaysValidSchema, Type} from "../../compile/util"
+
+export type UnevaluatedItemsError = ErrorObject<"unevaluatedItems", {limit: number}, AnySchema>
+
+const error: KeywordErrorDefinition = {
+  message: ({params: {len}}) => str`must NOT have more than ${len} items`,
+  params: ({params: {len}}) => _`{limit: ${len}}`,
+}
+
+const def: CodeKeywordDefinition = {
+  keyword: "unevaluatedItems",
+  type: "array",
+  schemaType: ["boolean", "object"],
+  error,
+  code(cxt: KeywordCxt) {
+    const {gen, schema, data, it} = cxt
+    const items = it.items || 0
+    if (items === true) return
+    const len = gen.const("len", _`${data}.length`)
+    if (schema === false) {
+      cxt.setParams({len: items})
+      cxt.fail(_`${len} > ${items}`)
+    } else if (typeof schema == "object" && !alwaysValidSchema(it, schema)) {
+      const valid = gen.var("valid", _`${len} <= ${items}`)
+      gen.if(not(valid), () => validateItems(valid, items))
+      cxt.ok(valid)
+    }
+    it.items = true
+
+    function validateItems(valid: Name, from: Name | number): void {
+      gen.forRange("i", from, len, (i) => {
+        cxt.subschema({keyword: "unevaluatedItems", dataProp: i, dataPropType: Type.Num}, valid)
+        if (!it.allErrors) gen.if(not(valid), () => gen.break())
+      })
+    }
+  },
+}
+
+export default def

node_modules/ajv/lib/vocabularies/unevaluated/unevaluatedProperties.ts

@@ -0,0 +1,85 @@
+import type {
+  CodeKeywordDefinition,
+  KeywordErrorDefinition,
+  ErrorObject,
+  AnySchema,
+} from "../../types"
+import {_, not, and, Name, Code} from "../../compile/codegen"
+import {alwaysValidSchema, Type} from "../../compile/util"
+import N from "../../compile/names"
+
+export type UnevaluatedPropertiesError = ErrorObject<
+  "unevaluatedProperties",
+  {unevaluatedProperty: string},
+  AnySchema
+>
+
+const error: KeywordErrorDefinition = {
+  message: "must NOT have unevaluated properties",
+  params: ({params}) => _`{unevaluatedProperty: ${params.unevaluatedProperty}}`,
+}
+
+const def: CodeKeywordDefinition = {
+  keyword: "unevaluatedProperties",
+  type: "object",
+  schemaType: ["boolean", "object"],
+  trackErrors: true,
+  error,
+  code(cxt) {
+    const {gen, schema, data, errsCount, it} = cxt
+    /* istanbul ignore if */
+    if (!errsCount) throw new Error("ajv implementation error")
+    const {allErrors, props} = it
+    if (props instanceof Name) {
+      gen.if(_`${props} !== true`, () =>
+        gen.forIn("key", data, (key: Name) =>
+          gen.if(unevaluatedDynamic(props, key), () => unevaluatedPropCode(key))
+        )
+      )
+    } else if (props !== true) {
+      gen.forIn("key", data, (key: Name) =>
+        props === undefined
+          ? unevaluatedPropCode(key)
+          : gen.if(unevaluatedStatic(props, key), () => unevaluatedPropCode(key))
+      )
+    }
+    it.props = true
+    cxt.ok(_`${errsCount} === ${N.errors}`)
+
+    function unevaluatedPropCode(key: Name): void {
+      if (schema === false) {
+        cxt.setParams({unevaluatedProperty: key})
+        cxt.error()
+        if (!allErrors) gen.break()
+        return
+      }
+
+      if (!alwaysValidSchema(it, schema)) {
+        const valid = gen.name("valid")
+        cxt.subschema(
+          {
+            keyword: "unevaluatedProperties",
+            dataProp: key,
+            dataPropType: Type.Str,
+          },
+          valid
+        )
+        if (!allErrors) gen.if(not(valid), () => gen.break())
+      }
+    }
+
+    function unevaluatedDynamic(evaluatedProps: Name, key: Name): Code {
+      return _`!${evaluatedProps} || !${evaluatedProps}[${key}]`
+    }
+
+    function unevaluatedStatic(evaluatedProps: {[K in string]?: true}, key: Name): Code {
+      const ps: Code[] = []
+      for (const p in evaluatedProps) {
+        if (evaluatedProps[p] === true) ps.push(_`${key} !== ${p}`)
+      }
+      return and(...ps)
+    }
+  },
+}
+
+export default def