crates: production models and repo layer

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Iceb76724c09eaca7ca5d823010db76776a6a6964

crates/common/migrations/005_channels_remote_builders.sql

@@ -0,0 +1,44 @@
+-- Channels for release management (like Hydra channels)
+-- A channel tracks the latest "good" evaluation for a jobset
+CREATE TABLE channels (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    project_id UUID NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
+    name VARCHAR(255) NOT NULL,
+    jobset_id UUID NOT NULL REFERENCES jobsets(id) ON DELETE CASCADE,
+    current_evaluation_id UUID REFERENCES evaluations(id),
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+    UNIQUE(project_id, name)
+);
+
+-- Remote builders for multi-machine / multi-arch builds
+CREATE TABLE remote_builders (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL UNIQUE,
+    ssh_uri TEXT NOT NULL,
+    systems TEXT[] NOT NULL DEFAULT '{}',
+    max_jobs INTEGER NOT NULL DEFAULT 1,
+    speed_factor INTEGER NOT NULL DEFAULT 1,
+    supported_features TEXT[] NOT NULL DEFAULT '{}',
+    mandatory_features TEXT[] NOT NULL DEFAULT '{}',
+    enabled BOOLEAN NOT NULL DEFAULT true,
+    public_host_key TEXT,
+    ssh_key_file TEXT,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Track input hash for evaluation caching (skip re-eval when inputs unchanged)
+ALTER TABLE evaluations ADD COLUMN inputs_hash VARCHAR(128);
+
+-- Track which remote builder was used for a build
+ALTER TABLE builds ADD COLUMN builder_id UUID REFERENCES remote_builders(id);
+
+-- Track whether build outputs have been signed
+ALTER TABLE builds ADD COLUMN signed BOOLEAN NOT NULL DEFAULT false;
+
+-- Indexes
+CREATE INDEX idx_channels_project ON channels(project_id);
+CREATE INDEX idx_channels_jobset ON channels(jobset_id);
+CREATE INDEX idx_remote_builders_enabled ON remote_builders(enabled) WHERE enabled = true;
+CREATE INDEX idx_evaluations_inputs_hash ON evaluations(jobset_id, inputs_hash);
+CREATE INDEX idx_builds_builder ON builds(builder_id) WHERE builder_id IS NOT NULL;