[ImgBot] Optimize images

*Total -- 8,945.83kb -> 6,873.05kb (23.17%)

/public/images/project/nexusai-home.png -- 380.95kb -> 180.31kb (52.67%)
/public/images/project/linguistai-result.png -- 594.50kb -> 319.21kb (46.31%)
/public/images/project/linguistai-speaking.png -- 135.12kb -> 76.71kb (43.23%)
/public/images/project/linguistai-reading.png -- 149.87kb -> 85.22kb (43.14%)
/public/images/project/linguistai-home.png -- 152.38kb -> 89.00kb (41.6%)
/public/images/project/linguistai-writting.png -- 124.66kb -> 73.50kb (41.04%)
/public/images/project/nexusai-chat.png -- 555.74kb -> 347.05kb (37.55%)
/public/images/project/nexusai-dashboard.png -- 1,512.27kb -> 1,047.68kb (30.72%)
/public/images/blog/continue-dev.png -- 300.15kb -> 210.09kb (30.01%)
/public/images/project/nexusai-search.png -- 592.98kb -> 424.08kb (28.48%)
/public/images/blog/flux-lora.png -- 288.47kb -> 208.93kb (27.57%)
/public/images/blog/continue-ext.png -- 119.58kb -> 93.34kb (21.94%)
/public/images/blog/flux-caption.png -- 388.50kb -> 309.84kb (20.25%)
/public/images/blog/python313-no-gil.png -- 91.62kb -> 76.68kb (16.31%)
/public/images/blog/stop-using-requirements.jpg -- 59.21kb -> 53.08kb (10.34%)
/public/images/blog/flux-dataset.png -- 1,520.81kb -> 1,388.60kb (8.69%)
/public/images/blog/flux-sample-0.png -- 816.40kb -> 770.34kb (5.64%)
/public/images/blog/flux-sample-2.png -- 1,162.62kb -> 1,119.39kb (3.72%)

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