[1.8] Release roadmap — e-invoicing tracking epic

[nielsdrost7]

Split by release:

• v1.7.2 — small, self-contained fixes to existing templates (typos, compliance bugfixes, low-hanging fruit) are cherry-picked into the 1.7.2 release at release time. Templates are copied from this repo into the main app manually during release; they are not merged into InvoicePlane/InvoicePlane:develop.
• v1.8.0 — the larger format build-out below waits until 1.7.2 ships.

Already landed on develop (candidates to copy into the 1.7.2 release)

• ✅ PR Improve Factur-X compliance for French PDP validation #12 — Factur-X French PDP compliance bugfixes (closed Factur-X / EN16931 #11)
• ✅ PR Belgian xml #4 — Belgian Peppol UBL v2.1 template (closed Belgian XML #3)
• ✅ PR typo / rename confort to comfort #9 / fix: correct 'confort' to 'comfort' typo in Factur-X XML files #10 — confort → comfort label/comment typo fixes

Repositories & branches (1.8 build-out)

Repo	Branch	Scope
InvoicePlane/InvoicePlane	prep/v180 (create at 1.7.2 release)	Main app: migrations, client/invoice forms, controllers
underdogg-forks/ivpl-exprmt	prep/v180	Current working integration branch feeding the main app
InvoicePlane/InvoicePlane-e-invoices	develop	XML generators, configs, validation, tests

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Dependency-ordered plan (v1.8.0 — parked until 1.7.2 ships)

Tier 0 — Foundations (do first, everything depends on these)

• [1.8] AAA test scaffolding for e-invoice XML generators #22 — AAA test scaffolding for e-invoice XML generators (blocks [1.8] Implement Peppol BIS Billing 3.0 (UBL 2.1) XML template #16–[1.8] Validate required fields per e-invoice standard before XML generation #21)
• [1.8] Generator data contract: pass ip_client_meta and ip_invoice_meta to all generators #60 — Generator data contract: pass ip_client_meta and ip_invoice_meta to all generators (required by [1.8] Implement Peppol BIS Billing 3.0 (UBL 2.1) XML template #16–[1.8] Implement Facturae 3.2.1 XML template #20)

Tier 1 — Data model / field plumbing (ivpl-exprmt)

• [1.8] Add electronic invoice endpoint fields to client record #13 — Add electronic invoice endpoint fields to client record
• [1.8] Add company registration number field to client record #14 — Add company registration number field to client record
• [1.8] Add procurement routing code fields to invoice record #15 — Add procurement routing code fields to invoice record

Tier 2 — Main-app integration (InvoicePlane prep/v180)

• [1.8] Main app: database migration for client e-invoicing columns #55 — DB migration for client e-invoicing columns
• [1.8] Main app: client form E-Invoicing fieldset (UI + validation) #56 — Client form E-Invoicing fieldset (UI + validation) (depends on [1.8] Main app: database migration for client e-invoicing columns #55)
• [1.8] Main app: client model and controller — save and load e-invoicing fields #57 — Client model & controller: save/load e-invoicing fields (depends on [1.8] Main app: database migration for client e-invoicing columns #55, [1.8] Main app: client form E-Invoicing fieldset (UI + validation) #56)
• [1.8] Main app: invoice form E-Invoicing routing code fields (UI + validation) #58 — Invoice form E-Invoicing routing-code fields (UI + validation)
• [1.8] Main app: invoice controller — persist and load routing codes via ip_invoice_meta #59 — Invoice controller: persist/load routing codes via ip_invoice_meta (depends on [1.8] Main app: invoice form E-Invoicing routing code fields (UI + validation) #58)

Tier 3 — Generators & formats (e-invoices develop)

• [1.8] Implement Peppol BIS Billing 3.0 (UBL 2.1) XML template #16 — Peppol BIS Billing 3.0 (UBL 2.1) template
• [1.8] Implement XRechnung 3.0 (standalone CII) XML template #17 — XRechnung 3.0 (standalone CII) template (also folds in coderabbitai facturx10x.xml #2 DueDateDateTime; reuses the Factur-X / EN16931 #11/Improve Factur-X compliance for French PDP validation #12 CII compliance work now merged)
• [1.8] Implement ISDOC v6.0.1 XML template #18 — ISDOC v6.0.1 template
• [1.8] Implement FatturaPA v1.2 XML template #19 — FatturaPA v1.2 template
• [1.8] Implement Facturae 3.2.1 XML template #20 — Facturae 3.2.1 template (unsigned XML only — XAdES-EPES signing is out of scope)
• [1.8] Audit and complete KSeF v2.0 (Polish national e-invoice format) #23 — Audit & complete KSeF v2.0
• [1.8] Complete orphaned e-invoice configs that have no generator #24 — Complete orphaned configs that have no generator

Tier 4 — Cross-cutting

• [1.8] Validate required fields per e-invoice standard before XML generation #21 — Validate required fields per standard before XML generation

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Documentation

All reference/country-guide/troubleshooting docs live in the Wiki (Documentation) repository — InvoicePlane/Wiki (D-01 … D-31), publish-gated on the v1.8.0 release.

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Do not merge Tier 1–4 work into a release branch until v1.7.2 is tagged.