docs: migrate repository guidance to Gitea

docs/adr/0006-user-selected-horizons-and-cancellable-calculations.md

@@ -1,6 +1,6 @@
 # User-Selected Horizons and Cancellable Calculations
 
-Accepted for [issue #12](https://gitlab.nessar.fr/nessar/vac-optimizer/-/work_items/12). Fixed, saved planning horizons are implemented by [issue #57](https://gitlab.nessar.fr/nessar/vac-optimizer/-/work_items/57); user cancellation with a retained valid plan and original trace is implemented by [issue #58](https://gitlab.nessar.fr/nessar/vac-optimizer/-/work_items/58); removal of the automatic calculation deadline and heartbeat-based worker liveness are implemented by [issue #59](https://gitlab.nessar.fr/nessar/vac-optimizer/-/work_items/59). The indicative duration estimate is implemented by [issue #60](https://gitlab.nessar.fr/nessar/vac-optimizer/-/work_items/60); its initial model, session-local refinement and calendar-rendering measurement are documented in [planning-duration.md](../planning-duration.md).
+Accepted for [issue #12](https://gitea.nessar.fr/nessar/vac-optimizer/issues/12). Fixed, saved planning horizons are implemented by [issue #57](https://gitea.nessar.fr/nessar/vac-optimizer/issues/57); user cancellation with a retained valid plan and original trace is implemented by [issue #58](https://gitea.nessar.fr/nessar/vac-optimizer/issues/58); removal of the automatic calculation deadline and heartbeat-based worker liveness are implemented by [issue #59](https://gitea.nessar.fr/nessar/vac-optimizer/issues/59). The indicative duration estimate is implemented by [issue #60](https://gitea.nessar.fr/nessar/vac-optimizer/issues/60); its initial model, session-local refinement and calendar-rendering measurement are documented in [planning-duration.md](../planning-duration.md).
 
 `deadlineMs` remains an opt-in contract for technical callers: a finite non-negative planning-work budget with no ten-second cap. An omitted value is unlimited. It starts after calendar preparation and excludes trace capture, observer callbacks, and post-outcome artifact work. The calendar and benchmark omit it. A one-second worker heartbeat renews the coordinator's thirty-second inactivity timer during cooperative preparation and search; total elapsed time never triggers that timer while activity continues. Worker errors and unavailable execution retain their explicit outcomes, and monitoring ends when the outcome arrives so delayed trace delivery cannot invalidate it.
 

docs/adr/0007-declared-days-and-reported-balances.md

@@ -4,7 +4,7 @@ status: accepted
 
 # Declared Non-Working Days and Reported Leave Balances
 
-For [issue #13](https://gitlab.nessar.fr/nessar/vac-optimizer/-/issues/13), users declare fixed non-working dates among normal working days, with a CP, RTT, or Other type; Other covers every other reason for not working. Reported balances already account for booked leave, so these declarations consume no remaining balance and cannot receive another placement; they count towards compatible planning rules, including rules that earn leave.
+For [issue #13](https://gitea.nessar.fr/nessar/vac-optimizer/issues/13), users declare fixed non-working dates among normal working days, with a CP, RTT, or Other type; Other covers every other reason for not working. Reported balances already account for booked leave, so these declarations consume no remaining balance and cannot receive another placement; they count towards compatible planning rules, including rules that earn leave.
 
 Declared dates can form time-off periods without new leave placements, interrupt work sequences, and guide further optimization. Each calculation uses today's Europe/Paris calendar date, with reported balances assumed current as of that date: the planner adds only entitlements available strictly afterward, while earlier entitlements are already represented in the reported balances. This keeps existing bookings useful without debiting them again or asking users to manually add prospective gains; it relies on the user keeping reported balances current as the employer's system credits earned leave.