fix(api): adapt search to arr-core scoring API

PRs #63 and #65 were each green pre-merge but changed and consumed
the same arr-core surface; merging both broke main. Size bands are
now gibibytes with a points penalty, evaluate takes size_bytes, and
Policy carries score_weights (column wiring tracked in #68).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/arr-api/src/search.rs

@@ -4,7 +4,7 @@ use std::time::UNIX_EPOCH;
 use arr_core::policy::{evaluate, Candidate};
 use arr_core::{
     DolbyVisionProfile, HdrRules, Language, MovieOverrides, Policy, PolicyId, RequiredAudio,
-    Resolution, Rule, SizeBand, Source, Verdict,
+    Resolution, Rule, ScoreWeights, SizeBand, Source, Verdict,
 };
 use arr_indexer::{ProwlarrClient, SearchRelease, SearchRequest};
 use axum::extract::{Query, State};
@@ -97,8 +97,9 @@ struct HdrRulesJson {
 
 #[derive(Debug, Deserialize)]
 struct SizeBandJson {
-    floor_gb: u64,
+    floor_gib: u64,
-    target_gb: u64,
+    target_gib: u64,
+    penalty_points_per_gib_over: i32,
 }
 
 #[derive(Debug, Deserialize)]
@@ -434,8 +435,9 @@ fn policy_from_row(row: PolicyRow) -> Result<Policy, ApiError> {
                     (
                         resolution,
                         SizeBand {
-                            floor_bytes: gb(band.floor_gb),
+                            floor_bytes: gib(band.floor_gib),
-                            target_bytes: gb(band.target_gb),
+                            target_bytes: gib(band.target_gib),
+                            penalty_points_per_gib_over: band.penalty_points_per_gib_over,
                         },
                     )
                 })
@@ -449,6 +451,9 @@ fn policy_from_row(row: PolicyRow) -> Result<Policy, ApiError> {
             .into_iter()
             .filter_map(|(source, weight)| source_value(&source).map(|source| (source, weight)))
             .collect(),
+        // The row's score_weights column is not selected here yet; the seeded
+        // values match these defaults. Wiring the column through is #68.
+        score_weights: ScoreWeights::default(),
     })
 }
 
@@ -464,6 +469,7 @@ fn classify(
         overrides,
         original_language,
         Candidate::PreGrab(&parsed),
+        release.size,
     );
     let (verdict, rule) = verdict(&evaluation.verdict);
     let score = score(policy, &parsed, release.size, release.seeders);
@@ -555,8 +561,8 @@ fn bucket(verdict: &str) -> u8 {
         _ => 2,
     }
 }
-fn gb(value: u64) -> u64 {
+fn gib(value: u64) -> u64 {
-    value.saturating_mul(1_000_000_000)
+    value.saturating_mul(1024 * 1024 * 1024)
 }
 fn language(value: &str) -> Language {
     match value {