Canonical source: this directory. PHP 8.4+, Illuminate Database 13 as supplied by each host. No Brick Math dependency, new vendor packages or version changes. Monetary inputs are exact existing integer MZN cents; document tax/quantity calculations remain in their current host workflows.

BudgetContext explicitly carries actor, organisation scope, fiscal reference year and supported currency. BudgetControl is the single writer for allocations, approvals, reinforcements, reservation/award/commit/release and invoice budget consumption. Host callbacks acquire the organisation lock, revalidate identity/permissions, audit within the same transaction and check proposer eligibility. No call to auth/session/global DB facade occurs in the package.

Compras uses its existing tables and scope tenant_id (company); SGF QA uses separate cb_ tables scoped by tenant/company/unit with mapped centres/origins. No automatic identifier conversion. There are no sales, payable, payment, industrial budget or remote SGF dependencies.

Load bootstrap.php after the host's existing vendor autoloader. For local Compras development the provider locates this source tree. A standalone deployment installs the same versioned package artifact under packages/budget-control, or sets COMMON_BUDGET_PATH to its installed artifact; the local sibling fallback is disabled in production. No second maintained source copy is created. QA records the loaded source hash in both booted Laravel hosts.

Existing tables/constraints remain valid in Compras; no live migration is run. SGF schema/rights are QA-only in this increment. SGF operational activation, full procurement UI installation and customer data migration remain pending. See the delivery report for evidence and limitations.