📝 Pre-release: CHANGELOG entry for v0.8.0

[martinciu]

📝 Goal

Hand-curate the ## [0.8.0] CHANGELOG entry covering everything merged since v0.7.0, ahead of tagging the release.

📦 In scope (commits since v0.7.0)

• 📊 Surface scoped per-model weekly limits in the quota header (📊 tui/status: surface scoped per-model weekly limits in the quota header #463, 📊 tui/status: surface scoped per-model weekly limits in the quota header (#463) #467)
• 🗄️ Parse + persist usage-API limits array — per-model weekly limits — in a new usage_limits table (🗄️ anthro/cache: parse + persist usage-API limits array (per-model weekly limits) #458)
• 🔭 Add scope_model_id to the usage_limits dedupe key (🔭 cache: add scope_model_id to usage_limits dedupe key (schema v10) #462)
• 📊 Store JSONL effort and multi-model iterations — schema v11 (📊 parse/cache: store JSONL effort and multi-model iterations (schema v11) #464)
• 🔇 Log RecordUsageSample/PruneUsageSamples errors in the quota poller instead of swallowing them (🔇 fix(cmd): log RecordUsageSample/PruneUsageSamples errors in quota poller #461)
• 🗓️ pricing-drift CI compares the currently-effective snapshot, not the lexical max (396a94c) — internal
• ⬆️ Deps bumps: actions/setup-go 6.5.0 → 7.0.0 (chore(deps): bump actions/setup-go from 6.5.0 to 7.0.0 #454), anthropics/claude-code-action (chore(deps): bump anthropics/claude-code-action from 1.0.165 to 1.0.171 in the gha-deps group #451, chore(deps): bump anthropics/claude-code-action from 1.0.171 to 1.0.178 in the gha-deps group #453), modernc.org/sqlite (chore(deps): bump modernc.org/sqlite from 1.53.0 to 1.54.0 in the go-deps group #452) — internal

✅ Acceptance

• ## [0.8.0] — <tag date> section added above [0.7.0]
• Per-model weekly limits (header + cache) under ### Added; quota-poller error logging under ### Fixed
• Schema bump to v11 called out (cache is rebuilt/migrated automatically — pre-1.0 breaking changes policy)
• CI + deps bumps under ### Internal

Follows the v0.7.0 precedent (#449).