diff --git a/doc/diagram/conceptual-overview.svg b/doc/diagram/conceptual-overview.svg
index 47f18cb9..2d0b7ad5 100644
--- a/doc/diagram/conceptual-overview.svg
+++ b/doc/diagram/conceptual-overview.svg
@@ -1,7 +1,4 @@
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text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 58px; height: 1px; padding-top: 242px; margin-left: 531px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;" data-drawio-colors="color: rgb(0, 0, 0); "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">convert</div></div></div></foreignObject><text x="560" y="246" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">convert</text></switch></g><path d="M 391 565 L 404.63 565" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 409.88 565 L 402.88 568.5 L 404.63 565 L 402.88 561.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 241 525 L 371 525 L 391 565 L 371 605 L 241 605 L 261 565 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 148px; height: 1px; padding-top: 565px; margin-left: 242px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;" data-drawio-colors="color: rgb(0, 0, 0); "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Crawler Process<br /><br />download website<br />html code</div></div></div></foreignObject><text x="316" y="569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Crawler Process...</text></switch></g><path d="M 551 565 L 564.63 565" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 569.88 565 L 562.88 568.5 L 564.63 565 L 562.88 561.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 391 525 L 531 525 L 551 565 L 531 605 L 391 605 L 411 565 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 565px; margin-left: 392px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;" data-drawio-colors="color: rgb(0, 0, 0); "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Converter Process<br /><br />extract keywords<br />and metadata</div></div></div></foreignObject><text x="471" y="569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Converter Process...</text></switch></g><path d="M 651 525 L 651 495.57 L 517.37 495.5" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 512.12 495.5 L 519.12 492 L 517.37 495.5 L 519.12 499 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 751 565 L 771 565 L 771 167 L 746.37 167" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 741.12 167 L 748.12 163.5 L 746.37 167 L 748.12 170.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 701 525 L 701 343.86 L 517.37 343.75" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 512.12 343.75 L 519.12 340.25 L 517.37 343.75 L 519.12 347.25 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 551 525 L 731 525 L 751 565 L 731 605 L 551 605 L 571 565 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 198px; height: 1px; padding-top: 565px; margin-left: 552px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;" data-drawio-colors="color: rgb(0, 0, 0); "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;">Loader Process<br /><br />load data into the system</div></div></div></foreignObject><text x="651" y="569" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Loader Process...</text></switch></g><path d="M 685 102 L 685 62 L 596.37 62" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 591.12 62 L 598.12 58.5 L 596.37 62 L 598.12 65.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 660 152 L 596.37 152" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 591.12 152 L 598.12 148.5 L 596.37 152 L 598.12 155.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 700 202 L 700 242 L 596.37 242" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 591.12 242 L 598.12 238.5 L 596.37 242 L 598.12 245.5 Z" fill="rgb(0, 0, 0)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 660 102 L 710 102 L 740 132 L 740 202 L 660 202 L 660 102 Z" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><path d="M 710 102 L 710 132 L 740 132 Z" fill-opacity="0.05" fill="#000000" stroke="none" pointer-events="all"/><path d="M 710 102 L 710 132 L 740 132" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; 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text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 570px; margin-left: 88px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;" data-drawio-colors="color: rgb(0, 0, 0); "><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><div>Control Service</div><div><br /></div><div>orchestrate processes</div><div>ops GUI<br /></div></div></div></div></foreignObject><text x="147" y="574" fill="rgb(0, 0, 0)" font-family="Helvetica" font-size="12px" text-anchor="middle">Control Service...</text></switch></g><rect x="0" y="648" width="817" height="60" fill="rgb(255, 255, 255)" stroke="rgb(0, 0, 0)" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; 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