Add official US and European collection and calendar storage

Collect official RSS and Atom summaries, preserve historical captures, and poll macro releases with bounded cadence and Retry-After handling. Separate news collectors from the economic calendar worker.

Track statistical periods, publication stages, first observations, revisions, and current official series. Include explicit migration files and isolated archive, parsing, and import tests; no migration or import is executed by this commit.

Keep dependency declarations and lockfile together for PDF archives and the upcoming captcha integration. Verify the staged snapshot with 90 focused tests.

backend/tests/fixtures/europe/ons_jobs.html

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+<html><head></head><body><h1 class="padding-bottom--0 padding-top--0 margin-top--2 font-weight-700 margin-bottom--2 ">Labour market overview, UK: October 2026</h1><p class="page-bulletins--Summary margin-right-md--2 margin-bottom--3 padding-bottom--0 padding-top--0">
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+                            Estimates of employment, unemployment, economic inactivity, and other employment-related statistics for the UK.
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+                    </p><p class="alert-release-banner__title">This is the latest release.
+                <a>View previous releases</a>
+            </p><p class="col  col--md-12 col--lg-15 margin-bottom-sm--1 margin-bottom-md--3 margin-top-sm--1 padding-bottom--0 padding-top--0">
+                <span class="font-weight-700">Contact: </span><br><a class="text--white"><span class="visuallyhidden">Email </span>Labour Market team</a>
+            </p><p class="col  col--md-one-third col--lg-one-third margin-bottom-sm--1 margin-bottom-md--3 margin-top--0 padding-bottom--0 padding-top--0">
+                <span class="font-weight-700">Release date: </span><br>20 October 2026<br>
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+            </p><p class="col  col--md-one-third col--lg-one-third margin-bottom-sm--3 margin-bottom-md--3 margin-top--0 padding-bottom--0 padding-top--0">
+                <span class="font-weight-700">Next release: </span><br>17 November 2026
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+        <a class="link-complex nojs--hide js--show js-print-page">
+            Print this <span class="lowercase">
+Statistical bulletin
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+        <a class="link-complex js-pdf-dl-link">
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+    </p><p><a>Average weekly earnings in Great Britain</a></p><p><a>Earnings and employment from Pay As You Earn Real Time Information, UK</a></p><p><a>Employment in the UK</a></p><p><a>Labour market in the regions of the UK</a></p><p><a>Vacancies and jobs in the UK</a></p><p>The labour market remains broadly flat in 2026. There has been a slight increase in the employment rate, while the unemployment rate has seen a small fall, in the latest quarter. Over the same period, the number of payrolled employees has fallen, although early estimates for the latest period show little change on the month.</p><p>The number of vacancies has seen its largest fall since the start of the year. This is mainly from smaller firms, who continue to suggest that they may not be recruiting because of increased labour costs.</p><p>Regular wage growth has remained relatively stable. However, total pay is at its lowest level in nearly six years.</p><p></p><p>The embedded visualisation below may not display correctly without JavaScript enabled. <a class="underline-link">View it in full screen</a>.</p><p>Estimates for payrolled employees in the UK fell by 111,000 (0.4%) between August 2025 and August 2026, but it remained largely unchanged between July and August 2026, increasing by 1,000 (0.0%). This is based on administrative data from HM Revenue and Customs (HMRC).</p><p>When looking at June to August 2026, the period comparable with our Labour Force Survey (LFS) estimates, the number of payrolled employees fell by 92,000 (0.3%) over the year and by 37,000 (0.1%) over the quarter.</p><p>The early estimate of payrolled employees for September 2026 decreased by 66,000 (0.2%) on the year, but remained largely unchanged between August and September 2026, increasing by 13,000 (0.0%) to 30.3 million. Figures for September should be treated as provisional estimates and are likely to be revised when more data are received next month.</p><p>The UK employment rate (based on the LFS) for people aged 16 to 64 years, including both employees and self-employed, was estimated at 75.3% for June to August 2026. This is up by 0.2 percentage points on both the year and the latest quarter.</p><p>The UK unemployment rate for people aged 16 years and over was estimated at 4.7% in June to August 2026. This is down by 0.1 percentage points on the both the year and the latest quarter.</p><p>The UK economic inactivity rate for people aged 16 to 64 years was estimated at 20.9% in June to August 2026. This is down by 0.2 percentage points on the year and down by 0.1 percentage points in the latest quarter.</p><p>The UK Claimant Count for September 2026 increased on the month and on the year to an estimated 1.701 million.</p><p>The Claimant Count figure for the latest month is provisional and is subject to revisions after first publication. This is the result of later amendments to records in the administrative systems, for example, as work capability assessments conclude and more information is available about benefit claimants' ability to work.</p><p>The estimated number of vacancies in the UK decreased in the latest quarter. Early estimates for July to September 2026 suggest a decrease of 21,000 (2.9%) to 691,000, compared with April to June 2026. This is the largest quarterly fall since January to March 2026, which was also a fall of 21,000 vacancies. </p><p>Estimates have remained broadly flat since the start of the year, decreasing by 28,000 since January to March 2026. On the year, vacancies decreased by 37,000 (5.1%).</p><p>Outside of the coronavirus (COVID-19) pandemic period, the last time there were 691,000 or fewer vacancies was in July to September 2014, when there were 686,000 vacancies.</p><p>Feedback from our Vacancy Survey continues to suggest that smaller firms may not be recruiting because of increases in labour costs.</p><p>Annual growth in employees' average regular earnings (excluding bonuses) was 3.7% in June to August 2026 and has been relatively stable over the past six consecutive three-month periods, after a year of slowing growth.</p><p>Annual growth in total earnings (including bonuses) was 3.7% in June to August 2026, down from 3.9% on the previous three-month period. It was last lower than 3.7% in August to October 2020, when it was 2.8%.</p><p>Annual average regular earnings growth was 6.3% for the public sector and 3.0% for the private sector. Public sector annual pay growth continues to be affected by variations in the timing of pay awards this year. More information on this can be found in our <a>Average Weekly Earnings in Great Britain October 2026 bulletin</a>.</p><p>Annual growth in real terms, adjusted for inflation using the Consumer Prices Index including owner occupiers' housing costs (CPIH), was 0.6% for regular pay and 0.7% for total pay in June to August 2026. When using the Consumer Prices Index excluding owner occupiers' housing costs (CPI), annual growth in real terms for regular pay was 0.8%, and for total pLine truncated