refactor!: remove interceptions API, request logs view, and associated code (#26213)

## Summary

Removes the deprecated `/api/v2/aibridge/interceptions` endpoint and the
Request Logs frontend page, both replaced by the session-based view.

Closes https://linear.app/codercom/issue/AIGOV-266
Closes https://linear.app/codercom/issue/AIGOV-324

## Changes

### Backend
- Remove `GET /api/v2/aibridge/interceptions` HTTP handler and route
- Remove SDK types and client method (`AIBridgeInterception`,
`AIBridgeTokenUsage`, `AIBridgeUserPrompt`, `AIBridgeToolUsage`,
`AIBridgeListInterceptionsResponse`, `AIBridgeListInterceptionsFilter`)
- Remove SQL queries `CountAIBridgeInterceptions` and
`ListAIBridgeInterceptions`
- Remove `searchquery.AIBridgeInterceptions` parser
- Remove dbauthz wrappers, in-memory implementations, metrics, and mocks
for the interceptions list queries
- Remove the `coder aibridge interceptions list` CLI command and golden
files
- Regenerate API docs, swagger, mocks, and metrics

The `/models`, `/clients`, and `/sessions` endpoints stay; the sessions
list page still consumes all three.

### Frontend
- Delete the entire `RequestLogsPage/` directory (page, view, row,
filter, stories, tests)
- Remove the `/aibridge/request-logs` route and its lazy import
- Remove the `getAIBridgeInterceptions` API method,
`paginatedInterceptions` query, and mock interception entities
- `git mv` the shared filter and icon components used by the sessions
pages:
- `RequestLogsPage/RequestLogsFilter/{Client,Model,Provider}Filter.tsx`
→ `AIBridgePage/filters/`
- `RequestLogsPage/icons/AIBridge{Client,Model,Provider}Icon.tsx` →
`AIBridgePage/icons/`
- Drop the `getProviderIconName` hack and the duplicate `anthropic-neue`
icon case now that the FIXME no longer applies

## Commits

1. `refactor: remove interceptions API and request logs view` — the bulk
removal, with explicit renames for the shared filter/icon files.
2. `refactor(site/src/pages/AIBridgePage): drop getProviderIconName
hack` — cleanup of the FIXME that depended on RequestLogsPage existing.

> [!NOTE]
> Generated by Coder Agents on behalf of @dannykopping

coderd/database/dbauthz/dbauthz.go

@@ -1835,14 +1835,6 @@ func (q *querier) ClearChatMessageProviderResponseIDsByChatID(ctx context.Contex
 	return q.db.ClearChatMessageProviderResponseIDsByChatID(ctx, chatID)
 }
 
-func (q *querier) CountAIBridgeInterceptions(ctx context.Context, arg database.CountAIBridgeInterceptionsParams) (int64, error) {
-	prep, err := prepareSQLFilter(ctx, q.auth, policy.ActionRead, rbac.ResourceAibridgeInterception.Type)
-	if err != nil {
-		return 0, xerrors.Errorf("(dev error) prepare sql filter: %w", err)
-	}
-	return q.db.CountAuthorizedAIBridgeInterceptions(ctx, arg, prep)
-}
-
 func (q *querier) CountAIBridgeSessions(ctx context.Context, arg database.CountAIBridgeSessionsParams) (int64, error) {
 	prep, err := prepareSQLFilter(ctx, q.auth, policy.ActionRead, rbac.ResourceAibridgeInterception.Type)
 	if err != nil {
@@ -6237,14 +6229,6 @@ func (q *querier) ListAIBridgeClients(ctx context.Context, arg database.ListAIBr
 	return q.db.ListAuthorizedAIBridgeClients(ctx, arg, prep)
 }
 
-func (q *querier) ListAIBridgeInterceptions(ctx context.Context, arg database.ListAIBridgeInterceptionsParams) ([]database.ListAIBridgeInterceptionsRow, error) {
-	prep, err := prepareSQLFilter(ctx, q.auth, policy.ActionRead, rbac.ResourceAibridgeInterception.Type)
-	if err != nil {
-		return nil, xerrors.Errorf("(dev error) prepare sql filter: %w", err)
-	}
-	return q.db.ListAuthorizedAIBridgeInterceptions(ctx, arg, prep)
-}
-
 func (q *querier) ListAIBridgeInterceptionsTelemetrySummaries(ctx context.Context, arg database.ListAIBridgeInterceptionsTelemetrySummariesParams) ([]database.ListAIBridgeInterceptionsTelemetrySummariesRow, error) {
 	if err := q.authorizeContext(ctx, policy.ActionRead, rbac.ResourceAibridgeInterception); err != nil {
 		return nil, err
@@ -8677,14 +8661,6 @@ func (q *querier) CountAuthorizedConnectionLogs(ctx context.Context, arg databas
 	return q.CountConnectionLogs(ctx, arg)
 }
 
-func (q *querier) ListAuthorizedAIBridgeInterceptions(ctx context.Context, arg database.ListAIBridgeInterceptionsParams, prepared rbac.PreparedAuthorized) ([]database.ListAIBridgeInterceptionsRow, error) {
-	return q.db.ListAuthorizedAIBridgeInterceptions(ctx, arg, prepared)
-}
-
-func (q *querier) CountAuthorizedAIBridgeInterceptions(ctx context.Context, arg database.CountAIBridgeInterceptionsParams, prepared rbac.PreparedAuthorized) (int64, error) {
-	return q.db.CountAuthorizedAIBridgeInterceptions(ctx, arg, prepared)
-}
-
 func (q *querier) ListAuthorizedAIBridgeModels(ctx context.Context, arg database.ListAIBridgeModelsParams, _ rbac.PreparedAuthorized) ([]string, error) {
 	// TODO: Delete this function, all ListAIBridgeModels should be authorized. For now just call ListAIBridgeModels on the authz querier.
 	// This cannot be deleted for now because it's included in the

coderd/database/dbauthz/dbauthz_test.go

@@ -6322,34 +6322,6 @@ func (s *MethodTestSuite) TestAIBridge() {
 		check.Args(intID).Asserts(intc, policy.ActionRead).Returns(tools)
 	}))
 
-	s.Run("ListAIBridgeInterceptions", s.Mocked(func(db *dbmock.MockStore, faker *gofakeit.Faker, check *expects) {
-		params := database.ListAIBridgeInterceptionsParams{}
-		db.EXPECT().ListAuthorizedAIBridgeInterceptions(gomock.Any(), params, gomock.Any()).Return([]database.ListAIBridgeInterceptionsRow{}, nil).AnyTimes()
-		// No asserts here because SQLFilter.
-		check.Args(params).Asserts()
-	}))
-
-	s.Run("ListAuthorizedAIBridgeInterceptions", s.Mocked(func(db *dbmock.MockStore, faker *gofakeit.Faker, check *expects) {
-		params := database.ListAIBridgeInterceptionsParams{}
-		db.EXPECT().ListAuthorizedAIBridgeInterceptions(gomock.Any(), params, gomock.Any()).Return([]database.ListAIBridgeInterceptionsRow{}, nil).AnyTimes()
-		// No asserts here because SQLFilter.
-		check.Args(params, emptyPreparedAuthorized{}).Asserts()
-	}))
-
-	s.Run("CountAIBridgeInterceptions", s.Mocked(func(db *dbmock.MockStore, faker *gofakeit.Faker, check *expects) {
-		params := database.CountAIBridgeInterceptionsParams{}
-		db.EXPECT().CountAuthorizedAIBridgeInterceptions(gomock.Any(), params, gomock.Any()).Return(int64(0), nil).AnyTimes()
-		// No asserts here because SQLFilter.
-		check.Args(params).Asserts()
-	}))
-
-	s.Run("CountAuthorizedAIBridgeInterceptions", s.Mocked(func(db *dbmock.MockStore, faker *gofakeit.Faker, check *expects) {
-		params := database.CountAIBridgeInterceptionsParams{}
-		db.EXPECT().CountAuthorizedAIBridgeInterceptions(gomock.Any(), params, gomock.Any()).Return(int64(0), nil).AnyTimes()
-		// No asserts here because SQLFilter.
-		check.Args(params, emptyPreparedAuthorized{}).Asserts()
-	}))
-
 	s.Run("ListAIBridgeModels", s.Mocked(func(db *dbmock.MockStore, faker *gofakeit.Faker, check *expects) {
 		params := database.ListAIBridgeModelsParams{}
 		db.EXPECT().ListAuthorizedAIBridgeModels(gomock.Any(), params, gomock.Any()).Return([]string{}, nil).AnyTimes()