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/ea_gdp.html

@@ -0,0 +1,237 @@
+<html><head></head><body><meta property="article:published_time" content="2026-07-30T09:00:00Z"><div class="ecl-page-header__info ">
+                                <div class="ecl-page-header__meta ">
+                                    <span class="ecl-page-header__meta-item">Euro indicators</span>
+                                        <span class="ecl-page-header__meta-item">
+                                                    30 July 2026
+                                        </span>
+                                                <span class="ecl-page-header__meta-item">Next release: 30 October 2026</span>
+                                </div>
+                                <span class="ecl-label ecl-label--highlight ecl-u-mb-m ecl-u-mt-m ecl-u-mt-m-none">Preliminary flash estimate for the second quarter of 2026</span>
+                            <h1 class="ecl-page-header__title ecl-u-mt-none ecl-u-mb-l ">
+                                GDP up by 0.4% in the euro area and by 0.5% in the EU
+                            </h1>
+                        </div><p>In the second quarter of 2026, seasonally adjusted GDP increased by 0.4% in the <strong>euro area</strong> and by 0.5% in the <strong>EU</strong>, compared with the previous quarter, according to a preliminary flash estimate published by <strong>Eurostat, the statistical office of the European Union</strong>. In the first quarter of 2026, GDP had remained stable in the <strong>euro area</strong> and had increased by 0.1% in the <strong>EU</strong>.</p><p>These preliminary GDP flash estimates are based on data sources that are incomplete and subject to further revisions.</p><p><img class="chart"></p><p>Compared with the same quarter of the previous year, seasonally adjusted GDP increased by 1.0% in the <strong>euro area</strong> and by 1.2% in the <strong>EU</strong> in the second quarter of 2026, after +0.5% in the <strong>euro area</strong> and +0.8% in the <strong>EU</strong> in the previous quarter.</p><p><img class="chart"></p><p>Among the Member States for which data are available for the second quarter of 2026, <strong>Ireland</strong> (+3.9%) recorded the highest increase compared to the previous quarter, followed by <strong>Lithuania</strong> (+1.7%) and <strong>Sweden</strong> (+1.4%). The lowest growth rates were recorded in <strong>Belgium</strong> and <strong>Austria</strong> (both 0.0%). The year-on-year growth rate was positive for fourteen countries and negative for one country.</p><table>
+ <tbody>
+  <tr>
+   <th class="title numeric"><p>Growth rates of GDP in volume</p><p>(based on seasonally adjusted* data)</p></th>
+  </tr>
+  <tr>
+   <th class="datalabel numeric"><p></p></th>
+   <th class="datalabel border-right"><p><strong>Percentage change compared with the previous quarter</strong></p></th>
+   <th class="datalabel numeric"><p><strong>Percentage change compared with the same quarter of the previous year</strong></p></th>
+  </tr>
+  <tr>
+   <th class="datalabel numeric"><p></p></th>
+   <th class="datalabel"><p><strong>2025Q3</strong></p></th>
+   <th class="datalabel"><p><strong>2025Q4</strong></p></th>
+   <th class="datalabel"><p><strong>2026Q1</strong></p></th>
+   <th class="datalabel border-right"><p><strong>2026Q2</strong></p></th>
+   <th class="datalabel"><p><strong>2025Q3</strong></p></th>
+   <th class="datalabel"><p><strong>2025Q4</strong></p></th>
+   <th class="datalabel"><p><strong>2026Q1</strong></p></th>
+   <th class="datalabel numeric"><p><strong>2026Q2</strong></p></th>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header highlight"><p><strong>Euro area</strong></p></th>
+   <td class="highlight"><p>0.3</p></td>
+   <td class="highlight"><p>0.2</p></td>
+   <td class="highlight"><p>0.0</p></td>
+   <td class="border-right highlight"><p><strong>0.4</strong></p></td>
+   <td class="highlight"><p>1.2</p></td>
+   <td class="highlight"><p>1.1</p></td>
+   <td class="highlight"><p>0.5</p></td>
+   <td class="numeric highlight"><p><strong>1.0</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header highlight"><p><strong>EU</strong></p></th>
+   <td class="highlight"><p>0.4</p></td>
+   <td class="highlight"><p>0.2</p></td>
+   <td class="highlight"><p>0.1</p></td>
+   <td class="border-right highlight"><p><strong>0.5</strong></p></td>
+   <td class="highlight"><p>1.5</p></td>
+   <td class="highlight"><p>1.3</p></td>
+   <td class="highlight"><p>0.8</p></td>
+   <td class="numeric highlight"><p><strong>1.2</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Belgium</strong></p></th>
+   <td class=""><p>0.2</p></td>
+   <td class=""><p>0.1</p></td>
+   <td class=""><p>0.2</p></td>
+   <td class="border-right"><p><strong>0.0</strong></p></td>
+   <td class=""><p>1.0</p></td>
+   <td class=""><p>0.9</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class="numeric"><p><strong>0.5</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Czechia</strong></p></th>
+   <td class=""><p>0.7</p></td>
+   <td class=""><p>0.7</p></td>
+   <td class=""><p>0.2</p></td>
+   <td class="border-right"><p><strong>0.4</strong></p></td>
+   <td class=""><p>2.8</p></td>
+   <td class=""><p>2.8</p></td>
+   <td class=""><p>2.2</p></td>
+   <td class="numeric"><p><strong>2.0</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Germany</strong></p></th>
+   <td class=""><p>0.0</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>0.4</p></td>
+   <td class="border-right"><p><strong>0.2</strong></p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>0.6</p></td>
+   <td class="numeric"><p><strong>0.9</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Estonia</strong></p></th>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>1.1</p></td>
+   <td class="border-right"><p><strong>0.4</strong></p></td>
+   <td class=""><p>1.0</p></td>
+   <td class=""><p>1.2</p></td>
+   <td class=""><p>2.4</p></td>
+   <td class="numeric"><p><strong>2.1</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Ireland***</strong></p></th>
+   <td class=""><p>1.3</p></td>
+   <td class=""><p>-3.6</p></td>
+   <td class=""><p>-7.0</p></td>
+   <td class="border-right"><p><strong>3.9</strong></p></td>
+   <td class=""><p>5.2</p></td>
+   <td class=""><p>-0.2</p></td>
+   <td class=""><p>-13.2</p></td>
+   <td class="numeric"><p><strong>-5.6</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Spain</strong></p></th>
+   <td class=""><p>0.6</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class=""><p>0.6</p></td>
+   <td class="border-right"><p><strong>0.7</strong></p></td>
+   <td class=""><p>2.7</p></td>
+   <td class=""><p>2.7</p></td>
+   <td class=""><p>2.7</p></td>
+   <td class="numeric"><p><strong>2.7</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>France</strong></p></th>
+   <td class=""><p>0.4</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>-0.1</p></td>
+   <td class="border-right"><p><strong>0.2</strong></p></td>
+   <td class=""><p>0.8</p></td>
+   <td class=""><p>1.1</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class="numeric"><p><strong>0.7</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Italy</strong></p></th>
+   <td class=""><p>0.2</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class="border-right"><p><strong>0.2</strong></p></td>
+   <td class=""><p>0.7</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class="numeric"><p><strong>1.0</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Lithuania</strong></p></th>
+   <td class=""><p>0.3</p></td>
+   <td class=""><p>1.9</p></td>
+   <td class=""><p>-0.1</p></td>
+   <td class="border-right"><p><strong>1.7</strong></p></td>
+   <td class=""><p>2.2</p></td>
+   <td class=""><p>3.3</p></td>
+   <td class=""><p>2.8</p></td>
+   <td class="numeric"><p><strong>3.8</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Hungary</strong></p></th>
+   <td class=""><p>0.2</p></td>
+   <td class=""><p>0.2</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class="border-right"><p><strong>0.4</strong></p></td>
+   <td class=""><p>0.9</p></td>
+   <td class=""><p>0.8</p></td>
+   <td class=""><p>1.7</p></td>
+   <td class="numeric"><p><strong>1.6</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Netherlands**</strong></p></th>
+   <td class=""><p>0.4</p></td>
+   <td class=""><p>0.4</p></td>
+   <td class=""><p>0.3</p></td>
+   <td class="border-right"><p><strong>0.4</strong></p></td>
+   <td class=""><p>1.4</p></td>
+   <td class=""><p>1.6</p></td>
+   <td class=""><p>1.4</p></td>
+   <td class="numeric"><p><strong>1.3</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Austria</strong></p></th>
+   <td class=""><p>0.4</p></td>
+   <td class=""><p>0.2</p></td>
+   <td class=""><p>0.2</p></td>
+   <td class="border-right"><p><strong>0.0</strong></p></td>
+   <td class=""><p>1.3</p></td>
+   <td class=""><p>1.1</p></td>
+   <td class=""><p>0.9</p></td>
+   <td class="numeric"><p><strong>0.8</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Portugal</strong></p></th>
+   <td class=""><p>0.6</p></td>
+   <td class=""><p>0.9</p></td>
+   <td class=""><p>0.1</p></td>
+   <td class="border-right"><p><strong>0.8</strong></p></td>
+   <td class=""><p>2.2</p></td>
+   <td class=""><p>1.9</p></td>
+   <td class=""><p>2.4</p></td>
+   <td class="numeric"><p><strong>2.5</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Finland**</strong></p></th>
+   <td class=""><p>-0.1</p></td>
+   <td class=""><p>0.5</p></td>
+   <td class=""><p>0.9</p></td>
+   <td class="border-right"><p><strong>0.9</strong></p></td>
+   <td class=""><p>0.4</p></td>
+   <td class=""><p>0.6</p></td>
+   <td class=""><p>1.3</p></td>
+   <td class="numeric"><p><strong>2.5</strong></p></td>
+  </tr>
+  <tr>
+   <th class="numeric vertical-header"><p><strong>Sweden**</strong></p></th>
+   <td class=""><p>0.5</p></td>
+   <td class=""><p>0.9</p></td>
+   <td class=""><p>0.0</p></td>
+   <td class="border-right"><p><strong>1.4</strong></p></td>
+   <td class=""><p>2.3</p></td>
+   <td class=""><p>2.0</p></td>
+   <td class=""><p>2.0</p></td>
+   <td class="numeric"><p><strong>2.8</strong></p></td>
+  </tr>
+  <tr>
+   <td class="footer notes numeric"><p><span>: Data not available</span></p><p><span>* Growth rates to the previous quarter and to the same quarter of the previous year presented in this table are both based on seasonally and calendar adjusted figures, except where indicated. Unadjusted data are not available for all Member States which are included in GDP flash estimates.</span></p><p><span>** Percentage change compared with the same quarter of the previous year calculated from calendar adjusted data.</span></p><p><span>*** Irish GDP flash estimate is categorised as a </span><a><span>CSO Frontier Series Output</span></a><span>. Particular care must be taken when interpreting the statistics as it may use new methods which are under development and/or data sources which may be incomplete, for example new administrative data sources.</span></p><p><span>Source datasets: </span><a><span>namq_10_gdp</span></a></p><p><img></p></td>
+  </tr>
+ </tbody>
+</table><p>The next estimates for the second quarter of 2026 will be released on 14 August 2026.</p><p></p><p><a>Revisions</a><span><span> </span></span>of quarterly GDP estimates are continuously monitored<span><span>. Further information can be found on Eurostat </span></span><a>website</a><span><span>.</span></span></p><p>With this preliminary flash estimate, euro area and EU GDP figures for earlier quarters are not revised.</p><p>All figures presented in this release may be revised with the GDP t+45 flash estimate scheduled for 14 August 2026 and subsequently by Eurostat’s regular estimates of GDP and main aggregates (including employment) scheduled for 7 September 2026 and 20 October 2026.</p><p>The preliminary flash estimate of GDP growth for the second quarter of 2026 presented in this release is based on the data of 19 Member States, covering 96% of euro area GDP and 94% of EU GDP.</p><p>Comprehensive estimates of European main aggregates (including GDP and employment) are based on countries regular transmissions and published around 65 and 110 days after the end of each quarter. To improve the timeliness of key indicators, Eurostat also publishes flash estimates for GDP (after around 30 and 45 days) and employment (after around 45 days). Their compilation is based on estimates provided by EU Member States on a voluntary basis.</p><p>This news release presents preliminary flash estimates for euro area and EU after around 30 days.</p><p>European quarterly national accounts are compiled in accordance with the European System of Accounts 2010 (ESA 2010).</p><p><strong>Gross domestic product (GDP)</strong> at market prices measures the production activity of resident production units. Growth rates are based on chain-linked volumes.</p><p>Two statistical working papers present the preliminary GDP flash methodology for the <a>European estimates</a> and <a>Member States estimates</a>.</p><p><span><span>The method used for compilation of European GDP is the same as for previous releases.</span></span></p><p><strong>Euro area (EA21): </strong>Belgium, Bulgaria, Germany, Estonia, Ireland, Greece, Spain, France, Croatia, Italy, Cyprus, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Austria, Portugal, Slovenia, Slovakia and Finland.</p><p><strong>European Union (EU 27):</strong> Belgium, Bulgaria, Czechia, Denmark, Germany, Estonia, Ireland, Greece, Spain, France, Croatia, Italy, Cyprus, Latvia, Lithuania, Luxembourg, Hungary, Malta, the Netherlands, Austria, Poland, Portugal, Romania, Slovenia, Slovakia, Finland and Sweden.</p><p></p><p><a>Website section on national accounts</a>, and specifically the page on <a>quarterly national accounts</a></p><p><a>Database section on national accounts</a> and <a>metadata on quarterly national accounts</a></p><p><a>Statistics Explained articles on measuring quarterly GDP</a> and <a>presentation of updated quarterly estimates</a></p><p><a>Country specific metadata</a></p><p><a>European System of Accounts 2010</a></p><p><a>Euro indicators dashboard</a></p><p><a>Release calendar for Euro indicators</a></p><p><a>European Statistics Code of Practice</a></p><p class="ecl-u-type-heading-5">Media requests</p><p class="ecl-u-type-paragraph ecl-u-mb-none">
+                  <span>Eurostat Media Support</span>
+                </p><p class="ecl-u-type-paragraph ecl-u-mb-none">
+                  <span>E-mail: <a class="ecl-link">[email protected]</a>
+                  </span>
+                </p><p class="ecl-u-type-heading-5">Further information on data</p><p class="ecl-u-type-paragraph ecl-u-mb-none">
+                    <span>Thierry COURTEL</span>
+                  </p><p class="ecl-u-type-paragraph"></p><p class="ecl-u-type-paragraph ecl-u-mb-none">
+                    <span>Julio Cesar CABECA</span>
+                  </p><p class="ecl-u-type-paragraph ecl-u-mb-none">
+                    <span>E-mail: <a class="ecl-link">[email protected]</a>
+                    </span>
+                  </p></body></html>