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Common Stock and Common Stock Warrants - Schedule of Reserved Shares of Common Stock (Details) - shares | Mar. 29, 2026 | Dec. 28, 2025 | Dec. 29, 2024
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Schedule of Reserved Shares of Common Stock [Abstract] |  |  |
Common stock warrants | 25,670,265 | 25,670,265 | 31,670,265
Employee stock purchase plan | 3,174,434 | 3,174,434 | 2,628,996
Stock options and RSUs, issued and outstanding | 18,299,560 | 19,164,660 | 11,979,368
Stock options and RSUs, authorized for future issuance | 11,603,508 | 11,603,508 | 2,577,895
SAFE Agreement | 2,750,000 | 2,750,000 | 2,750,000
Forward purchase agreements | 6,720,000 | 6,720,000 | 6,720,000
Convertible notes | 82,635,442 | 82,460,428 | 58,579,636
Deferred purchase price consideration | 4,973,840 | 11,640,506 |
Total shares reserved | 155,827,049 | 163,183,801 | 116,906,160

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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
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- Definition Aggregate number of nonredeemable convertible preferred shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
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