docs: refocus readme on the project and workflow

docs: sharpen the lowercase readme for the unified workflow

feat: unify sliderag under a shared package and styled cli

feat: log retrieved chunk count per slide

fix: strip llm meta-commentary from output

fix: enforce .gitignore and remove tracked pycache files

fix: trust ai judgment, only warn on duplicates instead of removing

fix: use deepseek-r1:32b as default everywhere

fix: add anti-repetition, duplicate detection, hallucination removal

add __pycahce__ to .gitignore

fix: switch default model to deepseek-r1:32b

feat: complete sliderag pipeline implementation

Initial commit